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

A limbless amphibia is

  1. salamander

  2. icthyophis

  3. heloderma

  4. racophorus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Icthyophis is a limbless amphibian.

Multiple choice

Comb plates of ctenophores possess

  1. cilia for locomotion

  2. cilia for filter feeding

  3. teeth for crushing

  4. teeth for filtering
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ctenophores have eight comb-like rows of fused plates of cilia, called ctenes.

Multiple choice

Which of the following viruses were named as “chimpanzee coryza agent” by Morris?

  1. Paramyxoviruses

  2. Respiratory syncytial virus (RSV)

  3. Parainfluenza viruses

  4. Picornaviruses
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Respiratory syncytial virus (RSV) was first isolated in 1956 by Morris and co-workers who named it “chimpanzee coryza agent”. Shortly thereafter, Chanock and co-workers confirmed that the agent was able to cause respiratory illness in humans. Respiratory syncytial virus measures from 121 to 300 nm. It has an RNA genome, and like all members of the paramyxovirus family, the envelop exhibits spokes of glycoprotein.

Multiple choice

Dolphins are regarded as the ____ creatures.

Directions: Read the following passage and answer the question that follows:

Dolphins

Dolphins are regarded as the friendliest creatures in the sea and stories of them helping drowning sailors have been common since Roman times. The more we learn about dolphins, the more we realize that their society is more complex than people previously imagined. They look after other dolphins when they are ill, care for pregnant mothers and protect the weakest in the community, as we do. Some scientists have suggested that dolphins have a language but it is much more probable that they communicate with each other without needing words. Certainly, the most common argument in the favour of man’s superiority over them that we can kill them more easily than they can kill us is the least satisfactory. On the contrary, the more we discover about these remarkable creatures the less we appear superior when we destroy them.

  1. most dangerous

  2. friendliest

  3. laziest

  4. most shy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is given in the first line of the passage.

Multiple choice

Tracheids have _____________.

  1. thick walls

  2. thin walls

  3. small walls

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

Tracheids are specialized cells in xylem with thick, lignified cell walls that provide both structural support to the plant and help transport water. The thick walls are essential for their dual function of conduction and support. Thin walls would not provide adequate structural strength.