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CBSE Questions for Class 9 Biology Diversity In Living Organisms Quiz 5 - MCQExams.com
CBSE
Class 9 Biology
Diversity In Living Organisms
Quiz 5
Which one of the following cavities is found in
Nemathelminthes
?
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0%
Pseudocoelom
0%
Coelenteron
0%
Spongocoel
0%
Coelom
Explanation
The presence or absence of body cavity between the wall of the body and the wall of the gut. If the body cavity is lined by mesoderm layer, it called as coelom and animal called as coelomate e.g., annelids, arthropods, molluscs etc. If the body cavity is not lined by mesoderm but present in mesoderm in the form of scattered pouch is called as pseudocoelom and animal called as pseudocoelomate e.g., Aschelminthes or Nemathelminthes or nematodes.
If the body cavity is absent called as acoelom and animal called as acoelomate e.g., Platyhelminthes.
Female
Ascaris
can be distinguished from male by
Report Question
0%
Straight posterior part
0%
Pineal setae
0%
Shorter in size
0%
Cloaca
Explanation
Ascaris are the unisexual and shows sexual dimorphism. The male worm measure 12-23 cms in length and 3-4 mm in diameter. The tail (posterior end) is curved ventrally in the form of a hook, with a conical tip. Whereas the female worm is longer and stouter than males measuring 25-49cms in length and 5mm in diameter. The tail ( posterior end ) is straight and blunt. Thus, the correct answer is option A.
Body cavity of earthworm is called as
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0%
True coelom
0%
Pseudocoelom
0%
Acoelom
0%
Haemocoel
Explanation
The coelom of an earthworm is its body cavity. It has a true coelom. There are three categories for grouping animals according to their coeloms, coelomate (animals that have a true coelom lined by muscle tissue on both sides), pseudocoelomate (animals that have a coelom line by muscle tissue only on one side), and acoelomates (animals that do not have a body cavity lined by muscle tissue on either side). Earthworms are coelomate animals.
Platyhelminthes represent an example of
Report Question
0%
Cellular grade of organisation
0%
Tissue grade of organisation
0%
Organ grade of organisation
0%
None of these
Explanation
Platyhelminthes is a triploblastic, bilaterally symmetrical acoelomate and the space between the
body
wall and the
alimentary
canal is filled with mesenchyme (connective tissue)
. The developing nerve net clearly indicates that they have an organ grade of organization.
So, the correct answer is option C.
The blood pigment of earthworms is
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0%
Haemocyanin
0%
Haematin
0%
Cyanin
0%
Haemoglobin
Explanation
The blood system of annelids is a closed system, meaning that they have blood vessels through which the blood flows. There are two main longitudinal blood vessels, a dorsal one and a ventral one, as well as three smaller longitudinal vessels, two lateral neural vessels, and one sub-neural vessel.
These vessels have circular muscles around them which can contract rhythmically to keep the blood moving around the body.
The vessels also contain valves that ensure the blood only flows in one direction. Blood flows from the head to the tail in the ventral vessel and back, from the tail to the head, in the dorsal vessel. In each segment, a number of smaller lateral (side) vessels branch off from the main vessels to supply the sections of that segment.
The blood of annelids contains hemoglobin, the same respiratory pigment as in humans, it is this that makes their blood the same red colour as ours.
Male and female Ascaris respectively have
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Two testes and two ovaries
0%
Two testes and one ovary
0%
One testis and two ovaries
0%
One testis and one ovary
Explanation
Ascaris belongs to nematodes and is unisexual.
Females are usually wider around and 20-40 cm long, while males are usually thinner and grow to be 15-30 cm long.
Female worms are straight posterior end while males are hooked.
Male Ascaris is monarchic, possessing a single testis which is long, thin and highly twisted tube-like structure while female Ascaris is didelphic i.e., it has two ovaries two oviducts and two uterus. Each ovary is a long, thin thread-like much-twisted tube.
Thus, the correct answer is option C.
Which of the following groups includes amphibians of plant kingdom?
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0%
Thallophyta
0%
Bryophyta
0%
Cormophyta
0%
Spermatophyta
Explanation
Bryophytes are the amphibians of the plant kingdom. They are known as amphibians because in spite of being terrestrial plants, they need water for fertilization. Water is needed for the transport of sperm for the process of fertilization.
Therefore, the correct answer is option B.
Blood vascular system of earthworm is of
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0%
Open type
0%
Closed type
0%
Portal type
0%
None of these
Explanation
The earthworm belongs to class Annelida. It has closed circulatory system. The blood runs in closed vessels known as arteries and veins and returns back to the heart. In this type of system, blood is pumped by a heart through vessels and does not normally fill body cavities.
Therefore, the correct answer is option B.
An organ in earthworm analogous to our kidney is
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0%
Testis
0%
Nephridium
0%
Clitellum
0%
Ovary
Explanation
Annelida is the triploblastic, bilateral symmetrical coelomate. They are the ringworms that have segmented body. The body surface is covered by the cuticles made up of chitin. They have a closed circulatory system. They possess nephridia for excretion.
A large number of nephridia are grouped together to form each tuft. The terminal ducts of all the nephridia unite to form a common excretory duct. The three pairs of common excretory ducts discharge their wastes into the pharynx and buccal chamber like nephron in the human kidney.
Thus, it is called as analogous to our kidney.
Which one of the following is a true fish?
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0%
Silver fish
0%
Flying fish
0%
Crayfish
0%
Whale
Explanation
Correct Option: B
Explanation:
$${Exocoetus}$$ or the
Flying Fish
is a
true fish
.
Pisces are true,
jawed vertebrates
.
The organisms belonging to this class are
poikilotherms
, they cannot regulate their body temperature.
Silverfish is an arthropod.
Crayfish is a crustacean.
The Whale is a mammal.
In phylum Platyhelminthes, the excretory organs are
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0%
Nephridia
0%
Malpighian tubules
0%
Flame cells (solenocytes)
0%
Green glands
Explanation
A flame cell is a specialized excretory cell found in flatworms (except the turbellarian order Acoela), rotifers and nemerteans. Flame cells function like a kidney, removing waste materials.
The nephridium is an invertebrate organ that occurs in pairs and performs a function similar to the vertebrate kidney. Nephridia remove metabolic wastes from an animal's body.
The malpighian tubule is a tubular excretory organ, numbers of which open into the gut in insects and some other arthropods.
Green glands are excretory organs in Crustaceans.
Therefore, the correct answer is option C.
Salamander is a/an
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0%
Annelid
0%
Mollusc
0%
Amphibian
0%
Bird
Explanation
Salamanders are the extinct species of amphibians belonging to the order Caudata. The present-day species are often called by the common term Urodela. They are typically characterized by a superficially lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. Salamander diversity is most abundant in the Northern Hemisphere and most species are found in the Holarctic ecozone, with some species present in the Neotropical zone.
The secondary or intermediate host of
Taenia
is
Report Question
0%
Pig
0%
Dog
0%
Man
0%
Snail
Explanation
Pigs ingest the eggs from human faeces or vegetation contaminated with human excreta. The embryonated eggs enter the intestine where they hatch into motile oncospheres. The embryonic and basement membranes are removed by the host's digestive enzymes (particularly pepsin).
Then the free oncospheres get attached to the intestinal wall using their hooks. With the help of digestive enzymes from the penetration glands, they penetrate the intestinal mucosa to enter the blood and lymphatic vessels. They move along the general circulatory system to various organs, and large numbers are cleared in the liver.
The surviving oncospheres preferentially migrate to striated muscles, as well as the brain, liver, and other tissues, where they settle to form cysts called as cysticerci. A single cysticercus is spherical, measuring 1–2 cm in diameter, and contains an invaginated protoscolex.
The central space is filled with fluid like a bladder, hence it is also called bladder worm. Cysticerci are usually formed within 70 days and may continue to grow for a year.
So, the correct answer is option A.
Proglottids in tapeworm proliferate
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0%
From the head or scolex
0%
From a special region of proliferation
0%
Any where from the body
0%
From the neck
Explanation
Proglottids in tapeworm proliferate from the neck region. Each proglottid is a section of a little egg-making machine that contains when mature, hundreds of eggs. The scolex is the "head" of the tapeworm. It has hooks/suckers to help it hold on to the host's tissues. These are what makes the tapeworm look like a measuring tape.
So, the correct answer is option D.
Most favourable land adaptation for reptiles is
Report Question
0%
Moist skin
0%
Scales on body
0%
Pulmonary respiration
0%
None of the above
Explanation
Reptiles have tough scaly skin which makes it suitable for terrestrial adaptation. They also tend to have efficient excretory systems, removing as much moisture as possible before releasing waste. This typically leads to firm feces and highly concentrated urine.
So, the correct answer is option B.
What is air bladder?
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0%
Larva of
Taenia solium
0%
Swimming organ of amphibians
0%
Hydrostatic or respiratory organ of teleost fishes
0%
Excretory organ of teleost fishes
Explanation
Air bladder of swim bladder is a gas-filled organ which provides buoyancy to the fish and helps them to stay and swim in water current swimming. It stores air and thus functions as hydrostatic. Thus, the correct answer is option C.
Which of the following is an example of viviparous animal?
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0%
Amphibians
0%
Reptiles
0%
Fish
0%
Shark
Explanation
Sharks give birth to live young ones and hence are viviparous. The number of pups in a litter ranges from 2-20 or more. For example, the Bull sharks, Whitetip reef shark, Lemon shark, Blue shark, Mako, Porbeagle, Salmon shark, the Silvertip shark and Hammerhead shark.
Amphibians, reptiles and fish are oviparous because the young hatch out from laid eggs.
In India, largest aquarium is situated at
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0%
Bombay
0%
Delhi
0%
Madras
0%
Calcutta
Explanation
Taraporewala Aquarium, situated in the Marine drive of Mumbai, India. It is the country's oldest and best marine and freshwater fish aquarium.
In which of the following habitats, the amphibians are usually not found?
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0%
Marine water
0%
Terrestrial
0%
Fresh water and terrestrial
0%
Fresh water
Explanation
Amphibians are the animals that can live in both, water and on the land. They inhabit a wide variety of habitats with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. They are never found in marine water.
Which of the following is a non-poisonous snake?
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0%
Cobra
0%
Python
0%
Viper
0%
Krait
Explanation
Python snakes can be traced in regions like Africa, Asia, and Australia. Its species are considered as the largest snake in the world. They typically remain motionless in a camouflaged position and then strike suddenly at passing prey. They will generally not attack humans unless startled or provoked, although females protecting their eggs can be aggressive. They are non-poisonous snakes
So, the correct answer is '
Python'
A flying lizard is
Report Question
0%
Varanus
0%
Gecko
0%
Draco
0%
Chameleon
Explanation
Draco
is a genus which includes flying lizards. These are also known as flying dragons. The ribs and their connecting membrane may be extended to create a wing, the hind limbs are flattened and wing-like in cross-section, and a small set of flaps on the neck serve as horizontal stabilizers.
Draco
is
arboreal insectivores. While not capable of powered flight they often obtain lift in the course of their gliding flights.
So, the correct answer is option C.
Which of the following is a characteristic feature of the bones of birds?
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0%
Four chambered heart
0%
Pneumatic bones
0%
Hollow nerve cord
0%
Large eyes
Explanation
Pneumatic bones is a characteristic feature of birds.
In Class 9 Biology, the term pneumatic refers to breathing.
Birds have remarkably specialized bones that are pneumatic, because they are full of air sacs that provide a continuous flow of breath throughout their bodies. In short, their lungs are essentially hooked up to their bones.
The bones of birds are lighter in weight than those of mammals. Some of the bones are hollow and actually act as part of the avian respiratory system. These bones, called pneumatic bones, include the skull, humerus, clavicle, keel, pelvic girdle, and lumbar and sacral vertebrae.
Birds have thin, hollow bones to lighten their weight and make it easier for them to fly. They also have a lower number of bones than other animals because the bones have fused together.
The hollow, or pneumatic, bones are filled with air, allowing the bird to defy gravity when it flies. Other aspects of a bird's skeleton also help in flight. For example, the bird has a fused backbone that helps it stay straight while it is in the air. Additionally, a bird's ulna has a series of bumps to which secondary flight feathers attach, providing structural support that permits the bird to catch the air and take off.
The sound-producing organ in singing bird is___________
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0%
Vocal sac
0%
Syrinx
0%
Larynx
0%
Synsacrum
Explanation
Syrinx is the name for the vocal organ of singing birds. Located at the base of a bird's trachea, it produces sounds without the vocal cords of mammals. The sound is produced by vibrations of some or all of the membrane tympaniformis (the walls of the syrinx) and the pessulus caused by air flowing through the syrinx. This sets up a self-oscillating system that modulates the airflow creating the sound. The muscles modulate the sound shape by changing the tension of the membranes and the bronchial openings. The syrinx enables some species of birds (such as parrots, crows, and mynas) to mimic human speech.
Which of these are absent in the modem birds?
Report Question
0%
Scales
0%
Feathers
0%
Teeth
0%
None of these
Explanation
Characteristics of the class Aves:
Teeth are absent in jaws.
Jaws are modified into the horny beak. The beak is toothless.
An epidermal horny sheath is present on the beak, which is called as
Rhamphotheca
.
Scales are found only on hind limbs.
Feathers are present on wings.
Movement of snake is helped by
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0%
Muscles
0%
Head
0%
Tail
0%
Reduced ribs
Explanation
Snakes are devoid of organs of locomotion. They move by contraction and relaxation of muscles. They have different types of movement like
serpentine movement, c
aterpillar or reticular movement, s
idewinding movement and c
oncertina movement.
Serpentine movement is a type of movement which s
tarts from the head, the snake will contract their muscles, thrusting their body from side to side. This movement creates a series of curves.
So, the correct answer is option A.
The urinary bladder is absent in______________
Report Question
0%
Chameleon
0%
Snake and crocodile
0%
Snake
0%
Wall lizard
Explanation
Snakes, crocodiles, and birds don't urinate, urea and other water soluble stuff are pushed out with the faeces.
Urinating is a balance between getting rid of waste and keeping hydrated. Birds and reptiles ‘urinate’ in a way to conserve their water. Unlike mammals, which excrete waste fluid (e.g., urea in water) as urine and solid waste as faeces, birds, snakes and crocodiles mix both liquid waste and solid waste into the semi-solid paste.
Thus, they do not possess a urinary bladder.
So, the correct answer is option B.
Which of the following characters represent flight adaptation of birds?
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0%
Bones are pneumatic.
0%
Sternum has keel for attachment of flight muscles.
0%
Forelimbs are modified into wings.
0%
All of the above.
Explanation
The presence of feathers is the most distinguishing feature of all birds. Feathers are highly modified scales that help the wings generate thrust and lift. They also streamline the body to reduce drag as the bird travels through the air. Since the bird bones are hollow (pneumatic bones), they also reduce weight. Birds have keeled sternum bones for the attachment of enormous muscles that power their wings, and a special bone called as the semilunate carpal that allows them to flap their wings efficiently.
All birds have a special system of airways throughout their skeletons and a four-chambered heart. These organ systems provide the flight muscles with a steady supply of oxygen-rich blood that prevent their wings from becoming exhausted while the bird is in the air.
Which of the following is caused by a helminth worm?
Report Question
0%
Polio
0%
Filariasis
0%
Tuberculosis
0%
Malaria
Explanation
Filariasis is a parasitic disease caused by an infection with roundworms belong to Nenathelminthes. These are spread by culex mosquitoes.
Which one is characteristic for birds?
Report Question
0%
They are flying animals.
0%
They are warm-blooded.
0%
They are bipedal and have feathers.
0%
They are quadruped and have scales.
Explanation
All birds have feathers.
They are vertebrates. They have hollow bones which them to fly by the use of wings, but some birds are flightless.
All birds are warm-blooded and oviparous. They can regulate their body temperature.
They are bipedal as they have two rear limbs or legs for terrestrial locomotion.
Tapeworm respires
Report Question
0%
Through suckers
0%
Through mouth
0%
Aerobically
0%
Anaerobically
Explanation
Cestoda is the class of parasitic flatworms which include tapeworms. They have no gut and no digestive system. They simply absorb nutrients from their host's gut. They are endoparasite and hermaphrodite.
Cestodes are covered with a cuticle (tough but flexible, non-mineral covering), and lack a true circulatory or respiratory system; they do have a bilateral nervous system. They respire anaerobically.
So, the correct answer is option D.
Group of animals that do not need to lay their eggs in water are________________
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0%
Pisces
0%
Amphibia
0%
Reptilia
0%
None of these
Explanation
Reptiles, the class
Reptilia
, are an evolutionary grade of animals, comprising today's turtles, crocodilians, snakes, lizards, and tuatara. Most reptiles lay amniotic eggs covered with leathery or calcareous shells. They are terrestrial animals and thus egg-laying happens on land. Whereas Pisces which include fishes depend on water for laying eggs. Amphibians also depend on water for their egg-laying process.
So, the correct answer is option C.
Aves are____________________
Report Question
0%
Cold blooded animals
0%
Warm blooded animals
0%
Can be either A or B
0%
None of these
Explanation
Mammals and birds are warm-blooded, which means, that they can make their own body heat even when it is cold outside. Whether it is sunny and hot outside or there is a snowstorm and it is very cold, warm-blooded animals have body temperatures that usually stay the same.
The group of animals whose coelomic cavity is blood filled is
Report Question
0%
Mollusca
0%
Nematoda
0%
Arthropoda
0%
Reptilia
Explanation
A coelom can be defined as a cavity lined by an epithelium derived from mesoderm. Organs formed inside a coelom can freely move, grow, and develop independently of the body wall while fluid cushions and protects them from shocks. The circulatory system of arthropods consists of a heart, a few blood vessels and the blood-filled hemocoel. The coelom is much reduced in arthropods and is usually represented only by small spaces associated with the gonads and excretory system. The body cavity is a hemocoel.
Elephantaisis is caused by
Report Question
0%
Trichinella
0%
Ancyclostoma
0%
Wuchereria
0%
Rhabditis
Explanation
Lymphatic filariasis, commonly known as elephantiasis because it
characterized
by the swelling of limbs which appears like limbs of the elephant. It is caused by the parasitic filarial worms
Wuchereria bancrofti
and transmitted by the culex mosquito.
Therefore, the correct answer is option C.
Blue-whale comes under the category of__________________
Report Question
0%
Reptile
0%
Pisces
0%
Amphibians
0%
Mammals
Explanation
Mammals are the vertebrates that nourish their children Blue-whales are mammals, however, due to the fact that they live in the ocean these large animals are referred to as marine mammals. They produce
milk through the mammary gland to nurse their young.
Ultrasonic sound is differentiated
by
Report Question
0%
Cat
0%
Dog
0%
Bat
0%
Bird
Explanation
Biosonar or sonar system helps dolphins, bats, and a few other vertebrates to detect distant objects by echolocation. These organisms emit high-pitched sounds that bounce off objects in its path and produce an echo back. They respond rapidly to the echo or ultrasonic sound and skillfully avoid obstacles and captures prey. Other organisms can not hear the sound waves or can hear the only limited number of sounds produced by an organism using echolocation. Thus, the correct answer is option C.
Largest group of Animalia is _________________
Report Question
0%
Nematoda
0%
Annelida
0%
Protochordata
0%
Arthropoda
Explanation
The phylum Arthropoda (“jointed foot”) has the largest number of species. In fact, about 85 percent of known species are arthropods and insects alone make up about 75 percent of known species. Other arthropods include the centipedes and millipedes; the arachnids (spiders, scorpions, ticks, mites); and the crustaceans (barnacles, crabs, crayfish, lobsters, shrimp, water fleas). Obviously, the arthropod body plan has been highly successful. The members of this phylum live on land, in freshwater, and in saltwater. They can walk, fly, burrow and swim. This is the only invertebrate group with jointed appendages (legs, feet, and antennae).
Worm causing elephantiasis
Report Question
0%
Round worms
0%
Ring worms
0%
Pin worms
0%
Filarial worms
Explanation
Lymphatic filariasis, commonly known as elephantiasis because it characterised by the swelling of limbs which appears like limbs of the elephant. It is caused by the parasitic filarial worms and transmitted by the culex mosquito.
Which of the following worms enters the intestine by penetrating through the skin?
Report Question
0%
Hookworm
0%
Tapeworm
0%
Threadworm
0%
Ringworm
Explanation
Hookworm females produce about 10,000-20,000 eggs per day in the small intestine of an infected person which then pass to the soil through feces. In the soil, they incubate and the immature larva is hatched out from the egg. Once they get mature develops hook-like structure. If exposed to human skin they attached with the skin through hook and penetrates into the blood.
Animals like scorpions, cockroaches lizards, mice sharing our abodes (homes) and food live in our homes, are called
Report Question
0%
Cultigens
0%
Inquilines
0%
Living fossil
0%
Domesticated
Explanation
Inquilines are animals that live commensally in nest, burrow or some other place of habitation of another animal. Sometimes inquilines exhibit some of the some of the same characteristics that parasites do.
So, the correct answer is '
Inquilines'.
Penguin is
Report Question
0%
Flightless bird
0%
Winged bird
0%
Both A and B
0%
Wingless bird
Explanation
Penguins are a group of aquatic, flightless, winged birds living almost exclusively in the Southern Hemisphere, especially in Antarctica. They are highly adapted for life in the water. They have countershaded dark and white plumage and their wings have evolved into flippers. Most penguins feed on krill, fish, squid and other forms of sealife caught while swimming underwater. They spend about half of their lives on land and half in the oceans
So, the correct answer is '
Both A and B'
Mammal which never drinks water is
Report Question
0%
Kangaroo
0%
Shrew
0%
Kangaroo/Desert Rat
0%
Hedgehog
Explanation
The desert rat or kangaroo rat are the rodents and almost perfectly adapted to life in the desert. They can survive without ever drinking any water, getting needed moisture from their seed diet only. They have excellent hearing and can even detect the silent sound of an owl approaching.
Therefore, the correct answer is option C.
Snakes lack
Report Question
0%
Scales
0%
Tympanum
0%
Ribs
0%
Locomotion
Explanation
Snakes ears differ from a lizard. Most lizards have an ear drum, a bony rod connecting to the ear drum, and an inner ear. Snakes lack tympanum, the stapes, and the cavity that holds them, but they retained the cochlea.
So, the correct answer is option B.
Number of gill pairs in bony fishes is
Report Question
0%
5-7
0%
4
0%
8-9
0%
10
Explanation
Bony fishes are the fishes which have bones as an endoskeleton. They have 4 gill pairs whereas cartilaginous fish have five to seven pairs and primitive jawless fish have seven.
Which one of the birds is viviparous?
Report Question
0%
Ostrich
0%
Penguin
0%
Albatross
0%
None of the above
Explanation
Viviparity: Giving birth to living offspring that develops within the mother's body as for most mammals. Oviparous animals are those which lay eggs.
Viviparity is totally absent in birds. All birds lay eggs and are thus they are oviparous.
Therefore, the correct answer is option D.
Which of the following diseases is caused by a nematode?
Report Question
0%
Leprosy
0%
Filariasis
0%
Amoebiasis
0%
Poliomyelitis
Explanation
Filariasis is caused by thread-like filarial nematodes (roundworms)
Wuchereria bancrofti.
They infect the lymphatic vessels and block the flow of lymph that leads to the swelling of limbs which appears like a limb of elephant and thus called as elephantiasis. It can be transmitted by culex mosquito.
Which of the following is a hermaphrodite animal?
Report Question
0%
Elephant
0%
Cow
0%
Dog
0%
Earthworm
Explanation
The earthworm is a hermaphrodite. This means the earthworm contains both male and female reproductive organs. The eggs which contain yolk are buried in the earth in capsules formed from secretions of the clitellum. The clitellum is the thickened section of the body near the front end. The capsules protect the young until they hatch as worms. The fact that the earthworm is a hermaphrodite means the earthworm can easily reproduce which is an excellent adaptation. Another adaptation would be the protective capsules around the eggs. This would give the eggs a better chance of hatching without being damaged in any way.
Which one is known as blood sucker
?
Report Question
0%
Hemidactylus
0%
Draco
0%
Garden Lizard
0%
Horned toad
Explanation
The oriental garden
lizard
is an insectivore. They ingest the blood of the host and derive nutrition from it. It is distributed throughout the world. The throat of the male turns bright red during the breeding season.
So, the correct reason is option C.
Which of the following belongs to a fish category?
Report Question
0%
Star fish
0%
Cuttle fish
0%
Devil fish
0%
Sea horse
Explanation
Seahorse is the small marine fishes in the genus
Hippocampus
. They have a horse like head and thus called as sea horse. As it shows the key characteristics of the fish called as true fish.
Star fish is an
Echinoderm
.
Cuttlefish are marine animals of the order Sepiida. They belong to the class Cephalopoda, which also includes squid, octopods, and nautiluses.
The devil fish or giant devil ray is an endangered species of eagle ray in the family Myliobatidae. It is currently listed as endangered, mostly due to bycatch mortality in unrelated fisheries.
Parasitic
Planaria
is a________________
Report Question
0%
Roundworm
0%
Tape worm
0%
Fluke
0%
None of these
Explanation
Trematodes
or flukes are flattened oval or worm-like animals. They are characterized by a sucker around their mouth and an additional ventral sucker.
Fluke parasites are a type of parasitic flatworm or trematode that can cause infections and diseases of the digestive tract and lungs of its host species.
So, the correct answer is option C.
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Practice Class 9 Biology Quiz Questions and Answers
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