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

Match the following:

 
a. Urochordata 1. In this subphyla, notochord is present during the embryonic period.
b. Cephalochordata 2. In this subphyla, notochord extends from head to tail region and is persistent throughout the organism's life.
c. Vertebrata 3. In this subphyla, notochord is present only in larval tail.

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

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

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

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

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

In the subphyla Urochordata, notochord is present only in larval tail. In the subphyla Cephalochordata, notochord extends from head to tail region and is persistent throughout the organism's life. In the subphyla Vertebrata, notochord is present during the embryonic period and replaced by the vertebral column in adult stage.

Multiple choice

Arthropoda is the largest phylum of Animalia. Which of the following is not a property of organisms of phylum Arthropoda?

  1. The body of these organisms is covered by chitinous exoskeleton.

  2. Arthropods have an organ level of organisation.

  3. Respiratory organs like gills, book gills or tracheal system are absent.

  4. Sensory organs are present.

  5. Their body consists of head, thorax and abdomen.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as this is not a property of organisms of phylum Arthropoda.

Multiple choice

Which of the following pair is INCORRECT?

  1. Yeast - Unicellular fungus

  2. Bread mould - multicellular fungus

  3. Chlamydomonas - Unicellular algae

  4. Trypanosoma - Virus

  5. Plasmodium - Protozoan
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Trypanosoma is not a Virus. It is a protozoan. Hence, this pair is incorrect.