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 is not true regarding Amoeba proteus?

  1. Discovered by Rossel Von Rosenhof

  2. Locomotary organ – pseudopodia

  3. Holozoic mode of nutrition

  4. Uricotelic in nature

  5. Respiration through general body surface
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because Amoeba proteus is ammonotelic in nature.

Multiple choice

Bioluminescence is found in

  1. Ceratium and Noctiluca

  2. Euglena and Paramecium

  3. Glaucoma and Giardia

  4. Ceratium and Paramecium

  5. Noctiluca and Giardia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct because Ceratium and Noctiluca show bioluminescence.

Multiple choice

Which of the following sets of protozoa represents endoparasites only?

  1. Balantidium, Paramecium, Trypanosoma

  2. Balantidium, Paramecium, Proterospongia

  3. Balantidium, Giardia, Trypanosoma

  4. Giardia, Proterospongia, Trypanosoma

  5. Giardia, Paramecium, Proterospongia
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Correct answer. Balantidium, Giardia, Trypanosoma: All are internal parasite protozoa. Balantidium is a common intestinal parasite of vertebrates, found chiefly in amphibians and mammals. Giardia are found as parasites in the digestive tract of vertebrates. Trypanosoma are the endoparasites which reside in blood and cerebrospinal fluid of man.

Multiple choice

The mode of nutrition in amoeba is

  1. autotrophic

  2. heterotrophic

  3. mixotrophic

  4. holozoic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Holozoic nutrition involves ingestion of solid organic food, like Amoeba engulfing food particles via phagocytosis. Amoeba cannot make its own food (not autotrophic). While it is heterotrophic (obtains food from external sources), 'holozoic' more specifically describes its mode of ingesting particulate matter.

Multiple choice

Which of the following statements are incorrect?

  1. Earthworms breathe through their lungs.

  2. Plants absorb water through their roots.

  3. Female monkeys feed their babies with their milk.

  4. Touch-me-not leaves fold themselves when touched.

  5. Plants move towards sunlight.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Earthworms breathe through their skin. Gas exchange takes place directly through their skin. This allows the worm breath because they do not have lungs.