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

Which of the following is not a characteristic of Kingdom Monera?

  1. The organisms do not have a clearly defined nucleus.

  2. Cell organelles are not covered with a membrane.

  3. These are unicellular organisms.

  4. None of these organisms have a cell wall.

  5. Mode of nutrition can be autotrophic or hetrotrophic.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Some organisms in Kingdom Monera have a cell wall and some do not have a cell wall. Thus, this is the correct answer.

Multiple choice

Which of the following is/are not true about Kingdom Protista?

a. Organisms under Kingdom Protista are unicellular eukaryotic organisms. b. Some of the organisms under Kingdom Protista use cilis or whip like flagella for moving around. c. The mode of nutrition for organisms under Kingdom Protista can be heterotrophic or autotrophic.

  1. Only a

  2. Only b

  3. Only c

  4. All of these

  5. None of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer, as all statements are correct about Kingdom Protista.

Multiple choice

Which of the following statements is incorrect?

  1. Both plants and animals contain protoplasm.

  2. Both plants and animals show response to stimuli.

  3. Both plants and animals have cell walls.

  4. Both plants and animals pass on hereditary characters to offspring by the same mechanism.

  5. Certain life processes take place in both animals and plants in identical manner.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This statement is false, hence this option is correct. Plants have cell walls as outer most covering. Animal cells do not have cell walls.

Multiple choice

Which of the following is incorrect about Alga?

  1. Green in colour.

  2. Filamentous or single celled.

  3. Presence of xylem vessels.

  4. Food stored as starch.

  5. Alga is Aquatic.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This statement is wrong, hence this option is the correct answer. Alga does not have xylem vessels. 

Multiple choice

Which of the following is correct about the Phylum Porifera of the animalia kingdom?

  1. Porifera have pores called ostia over the body.

  2. The body of porifera is radially symmetrical.

  3. The body of Porifera bears tentacles supplied with special stinging cells.

  4. Reproduction in Porifera is only asexual by budding and gemules.

  5. Most Porifera are small cylindrical or round worms.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct answer.  Porifera have pores called ostia over the body with a single large opening called osculum on top. Animals of these phylum are known as sponges.

Multiple choice

Flatworms belong to the Phylum

  1. Coelenterata

  2. Platyhelminthes

  3. Annelida

  4. Arthropoda

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

Flatworms belong to the Phylum Platyhelminthes. This is the correct answer.

Multiple choice

Which of the following is/are the features that all the chordates posses?

a. Vertebrates have bilaterally symmetrical body. b. They have a true vertebral column. c. They have dorsal nerve chord. d. They have chitinious exoskeleton.

  1. Only a, b and d

  2. Only a, b and c

  3. Only b, c and d

  4. Only a, c and d

  5. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer, as all  are correct statements about chordates. These animals have a true vertebral column and internal skeleton, allowing a completely different distribution of muscle attachment points to be used for movement. Vertebrates are bilaterally symmetrical, triploblastic, coelomic and segmented with complex differentiation of body tissues and organs.

Multiple choice

Match the following animals with their Phylum:

Animal Phylum
a. Honey bee 1. Mollusca
b. Snail 2. Echinodermata
c. Star fish 3. Arthropoda
d. Earthworm 4. Annelida

  1. a - 1, b - 2, c - 4, d - 3

  2. a - 2, b - 3, c - 4, d - 1

  3. a - 3, b - 1, c - 2, d - 4

  4. a - 4, b - 2, c - 3, d - 1

  5. a - 4, b - 3, c - 2, d - 1
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct matching. Honey bee belongs to the Phylum Arthropoda, Snail belongs to Phylum Mollusca, Star fish belongs to Phylum Echinodermata, and Earthworm belongs to Phylum Annelida.

Multiple choice

Which of the following statements is incorrect?

  1. Pisces are aquatic, have gills and have a two chambered heart.

  2. Amphibia are cold blooded with three chambered heart and their eggs are without coverings.

  3. Reptilia have a three chambered heart and eggs have hard covering.

  4. Aves are cold blooded, have a three chambered heart and have modified forelimbs.

  5. Mammalia are warm blooded, have a four chambered heart and have mammary glands.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This  is the correct answer, as this statement is incorrect. Aves have modified forelimbs for flight but they have a four chambered heart and are warm blooded.