Biology · Science General

Diversity in Living Organisms

3,323 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

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

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.

Multiple choice

The head of a sperm is

  1. an Albert’s staining organism

  2. a gram negative organism

  3. a gram positive organism

  4. acid fast organism

  5. none of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The head of a sperm is an Acid fast organism.

Multiple choice

_______________ is not an adaptation of polar bears.

  1. Three pair of eyelids.

  2. Long, curved and sharp claws.

  3. Wide and large paws.

  4. Body having two thick layers of furs.

  5. Ability to close nostrils.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. Three pair of eyelids is not an adaptation of the polar bear.