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

How do porifers and coelenterates excrete?

  1. Through contractile vacuole

  2. Through a specific canal system in tissues

  3. Through flame cells

  4. Through renett cells
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Porifers and coelenterates have a specific canal system in tissues from which the waste matter diffuses to external medium.

Multiple choice

Which of the following conditions is/are necessary for living things?

  1. Movement

  2. Reproduction

  3. Respiration

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All the listed processes (Movement, Reproduction, Respiration) are essential characteristics of living things. Movement allows response to stimuli, reproduction ensures species continuation, and respiration provides energy for survival. Therefore, all are necessary for life.

Multiple choice

The autotrophic organisms contain the green pigment known as _____.

  1. glucose

  2. starch

  3. chlorophyll

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chlorophyll is the green pigment found in autotrophic organisms that captures light energy for photosynthesis. It absorbs sunlight primarily in the blue and red wavelengths, reflecting green light which gives plants their characteristic color.

Multiple choice

Basal bodies are associated with the development of

  1. cilia and flagella

  2. cell plates

  3. phragmoplast

  4. kinetochore

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

Basal bodies serve as the organizing centers from which cilia and flagella grow. They contain the 9+0 microtubule structure that templates the 9+2 axoneme. Cell plates, phragmoplasts, and kinetochores have different functions.

Multiple choice

Peripatus is a connecting link between

  1. annelids and molluscs

  2. annelids and arthropods

  3. reptiles and mammals

  4. molluscs and arthropods
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Peripatus is a connecting link between Annelida and Arthropoda, because it exhibits characterstics of phylum Annelida and Arthropoda. (A)        Annelidan characters (a)        Presence of nephridia as excretory organ. (b)        Body pseudosegmented and worm-like (c)        Presence of simple eyes. (d)        Thick cuticle (B)       Arthropod Characters (a)       Clawed and pseudosegmented walking legs (b)       Presence of trachea as respiratory organs (c)       Presence of antennae Pertipatus shows that arthropods have evolved from annelid ancestors.