Diversity in Living Organisms

Which of the followingis/are correct for biodiversity?
1. Biodiversity means the diversity of life forms.
2. It refers to the variety of life forms found in a different region.

Which of the following is/are true for classification and evolution?
1. Greek thinker Aristotle classified animals according to whether they lived on
land, in water or in air.
2. Charles Darwin first described this idea of evolution in 1859 in his book – The
Origin of Species.

Which of the following is the correct order of classification?

Which of the following is/are correct for Monera?
1. These organisms do not have a defined nucleus or organelles.
2. The mode of nutrition of organisms in this group can be either by synthesising
their own food (autotrophic) or getting it from the environment (heterotrophic).
3. Examples are unicellular algae, diatoms and protozoans.

Which of the following is/are correct for Protista?
1. This group includes many kinds of unicellular prokaryotic organisms.
2. Their mode of nutrition can be autotrophic or heterotrophic.
3. Examples are unicellular algae, diatoms and protozoans.

Which of the following is/are correct for fungi?
1. These are heterotrophic eukaryotic organisms.
2. Their mode of nutrition can be autotrophic or heterotrophic.
3. Some fungal species live in permanent mutually dependent relationships with
bluegreen algae.

Which of the following is/are correct for Thallophyta?
1. Plants do not have well-differentiated body design.
2. They are also called algae.
3. Examples are Spirogyra, Ulothrix.

Which of the following is /are correct for Bryophyta?
1. These are called the amphibians of the plant kingdom.
2. There are specialised tissue for the conduction of water and other substances.
3. Examples are moss (Funaria) and Marchantia.

Which of the following is/are correct for Pteridophyta ?
1. The plant body is differentiated into roots, stem and leaves.
2. They have specialised tissues for the conduction of water and other substances.
3. Marsilea, ferns and horse – tails are examples.

Which of the following is/are correct for Angiosperms?
1. These are also called flowering plants.
2. The seeds develop inside an ovary which is modified to become a fruit.
3. Cotyledons are called \’seed leaves\’.

Which of the following is/are correct for gymnosperms?
1. The plants of this group bear naked seeds.
2. They are usually perennial, deciduous and woody.
3. Examples are pines and deodar.

Which of the following is/are correct for Porifera?
1. These are non-motile animals attached to some solid support.
2. There are holes or pores, all over the body.
3. These animals are covered with a soft outside layer.

Which of the following is/are correct for coelenterate?
1. These are animals living in water.
2. There is no cavity in the body.
3. Jellyfish and sea anemones are common examples.

Which of the following is/are correct for Platy-helminthes?
1. The body is bilaterally symmetrical.
2. There is a true internal body cavity or coelom.
3. They are either free – living or parasitic.

Which of the following is/are correct for nematoda?
1. The nematode body is bilaterally unsymmetrical.
2. There are tissues, but no real organs.
3. The body is cylindrical.

Which of the following is/are correct for annelid?
1. They have a true body cavity.
2. These animals are found in a variety of habitats – fresh water, marine water as
well as land.
3. Earthworms and leeches are examples.

Which of the following is/are correct for arthropoda?
1. These animals are bilaterally symmetrical and segmented.
2. There is an closed circulatory system.
3. They have jointed legs.

Which of the following is/are correct for protochordata?
1. They have a notochord.
2. Protochordates are marine animals.
3. Examples are Balanoglossus, Herdmania.

Which of the following is/are characteristics of a vertebrata?
1. A notochord
2. Unpaired gill pouches
3. Triploblastic

Which of the following is/are correctly matched?
1. Cyclostomata ———————————————————jawless vertebrates.
2. Pisces ——————————————————————– Streamlined body.
3. Amphibia ———————————————————– four chambered heart.
4. Aves ———————————————————————— warm – blooded.