CBSE Questions for Class 11 Medical Biology The Living World Quiz 13 - MCQExams.com

• Tuberosum is a species of Solanum tuberosum.
• Polymoniales is an order of the family Solanaceae.
• Solanum is a genus of Solanum tuberosum (potato), Solanum melongena (brinjal), etc.
• Plantae is a kingdom that consists of algae, bryophytes, pteridophytes, gymnosperms, and angiosperms.
• Solanaceae is a family that contains generas such as Datura, Petunia, Solanum, etc.
• So, the correct answer is option A.

• Species: a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g. Homo sapiens.
• A genus is a rank in the biological classification (or taxonomy). It stands above species, and below families. A genus can include more than one species. When biologists talk about a genus, they mean one or more species of animals or plants that are closely related to each other.
•  A family is one of the eight major taxonomic ranks; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks above the rank of genus.

$$\textbf{Correct option:}$$ (D) 

$$\textbf{Explanation for correct option:}$$

$$\bullet$$ $$Lantana$$ , Water hyacinth ( $$Eichhornia$$ ) and African catfish ( $$Clarias$$ $$gariepinus$$ ) are all exotic species which are invasive and have harmful impact resulting in the extinction of indigenous species.

$$\bullet$$ They all are the examples of Alien species invasion which is one of the cause of loss of biodiversity.

$$\bullet$$ Hence the correct option is (D)

• The fennec fox is a small fox that lives in sandy deserts. They are usually found in the Sahara and the northern part of Saudi Arabia.
• They have huge ears and very large eyes and are very agile. The large ears help the fox lose excess heat and also helps in detecting its prey from a long-distance away.
• They are nocturnal animals and have hairy feet that protect the fox from the hot desert sand.

• Crepuscular is a term for animals that are active primarily at dawn and dusk. These animals sleep at night and lie low during the daytime.
• Some of the common ones include rabbits, deer, bears, skunks, bobcat, and possums.
• Predators have a harder time seeing at twilight and dawn because of the lighting. This gives crepuscular animals, such as rabbits, an advantage.

• Carnauba wax is a natural wax that comes from the leaves of the Copernicia prunifera palm grown only in Brazil. It is the hardest natural wax available.
• Commercially, it is widely used in the cosmetic, body care, food, pharmaceutical, automotive, and other industries.

• The African Rock Python is Africa's largest snake. It is non-venomous, rather killing its prey by constriction i.e by tightening its prey.
• It feeds on small antelope, monkeys and fishes.

• Pit Bull is a generic term often used to describe all dogs with similar traits and characteristics often known by the public as Pit Bulls. They include breeds like American Pit Bull Terriers, American Staffordshire Terriers and Pit mixes.
• Pit bulls are very strong and can pull many times their weight. They are also bred for dog fighting.

• The giant panda is the rarest member of the bear family and among the world's most threatened animals.
• Giant pandas are bears with black and white fur. The panda's diet is 99% bamboo.
• These animals spend 10 to 16 hours every day looking for food and eat around 18-20kgs of bamboo everyday.