Biology · Science General

Diversity in Living Organisms

3,829 Questions

The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.

Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification

Diversity in Living Organisms Questions

Multiple choice

Prototrophs are

  1. organisms showing protocooperation

  2. fungal mutants incapable of growing on basal minimal medium

  3. fungal mutants capable of growing on basal minimal medium

  4. organisms having autotrophic mode of nutrition under special conditions
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Prototrophs are organisms (typically microbial strains) that can grow on minimal medium containing only essential nutrients because they can synthesize all required compounds. This contrasts with auxotrophs, which require supplementation.

Multiple choice

Which of the following statements given in the table below are reasons for migration of birds?

a. Birds migrate due to climatic reasons.
b. Birds need safer places to lay eggs.
c. Birds need areas that can take care of their feeding.
d. Birds like to travel and explore.

  1. a and b

  2. a and c

  3. a and d

  4. a, b and c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Birds migrate due to climatic reasons. Birds need safer places to lay eggs. Birds need areas that can take care of their feeding.

Multiple choice

Sometimes a body or some part of the body does not decompose properly and eventually hardens and retains the impression of the body part of that living creature. These types of traces help in studying the extinct creatures from the Earth. What are they called?

  1. Vestigial organs

  2. Fossils

  3. Analogous organs

  4. Homologous organs

  5. NA
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

They are known as fossils and help the archaeologists in studying the extinct creatures.

Multiple choice

The exoskeletons of arthropods are composed of ________ polymer.

  1. Starch

  2. Glycogen

  3. Cellulose

  4. Chitin

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chitin is a long-chain polymer of a N-acetylglucosamine, a derivative of glucose, and is found in many places throughout the natural world. It is the main component of the cell walls of fungi, the exoskeletons of arthropods such as crustaceans (e.g., crabs, lobsters and shrimps) and insects, the radulas of mollusks, and the beaks of cephalopods, including squid and octopuses.