Diversity in Living Organisms


Do Protozoans have eyes?


No, they do not have eyes. However Euglena (a protozoan) has an eye-spot which is sensitive to light.

Diversity in Living Organisms

Q 1.

Give examples of organisms which belong to Phylum Protochordata.

Q 2.

In the hierarchy of classification, which group will have the smallest number of organisms and a maximum number of similar characteristics?

Q 3.

What do you mean by biodiversity?

Q 4.

Who is known as the father of taxonomy?

Q 5.

On what bases are plants and animals put into different categories?

Q 6.

Name five countries that lie in the region of megadiversity.

Q 7.

In which kingdom you will place an organism which is multicellular, eukaryotic, non-green heterotroph or saprophytic, lacks chlorophyll and has an absorptive mode of nutrition?

Q 8.

Give examples of Thallophyta plants.

Q 9.

Differentiate between Annelida and Nematode.

Q 10.

Eichler classified the plant kingdom into two sub-kingdoms. Name the two sub kingdoms.

Q 11.

Give three examples of Protochordata animals.

Q 12.

What changes are evolved in limbs of aves?

Q 13.

Name the scientist who created the third kingdom for all microscopic unicellular organisms. What did he call it?

Q 14.

Explain the basis for grouping organisms into five kingdoms.

Q 15.

Give two examples of Gymnosperms.

Q 16.

Which phylum is commonly called roundworms or pinworms?

Q 17.

Give two examples of Bryophyta plants?

Q 18.

What type of circulatory system do Molluscs have?

Q 19.

Give three examples of animals belong to Echinodermata

Q 20.

Name the fish which is entirely made of cartilage.

Q 21.

Name the fish having skeleton made of both bone and cartilage.

Q 22.

Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?

Q 23.

What is the primary reason for such a huge diversity we find in animals and plants?

Q 24.

What is the primary characteristic on which the first division of organisms is made?

Q 25.

Who wrote the book The Origin of Species?

Q 26.

Based on evolution, primarily how organisms are categorised?

Q 27.

What are the major divisions in the Plantae? What is the basis for these divisions?

Q 28.

How do gymnosperms and angiosperms differ from each other?

Q 29.

Do sponges have a nervous system?

Q 30.

How do poriferan animals differ from coelenterate animals?

Q 31.

Name the first animals (phylum) that have a true body cavity.

Q 32.

How do annelid animals differ from arthropods?

Q 33.

What is a notochord? What does it do?

Q 34.

Name the substance which makes the cell wall of fungi.

Q 35.

Which in your opinion is more basic characteristic for classifying organism. The place where they live in or the kind of cells they are made of?

Q 36.

What is the primary characteristic on which the first division of organisms is made?

Q 37.

What is the mode of nutrition in Mushroom?

Q 38.

Write the name of the group of plants, which produces seeds, but not fruits.

Q 39.

Name the two groups of Plantae that are commonly called phanerogams.

Q 40.

Identify the plant groups which has net like veins in leaves, flower parts in group of fours or fives, vascular bundles are in a ring and two seed leaves.

Q 41.

Which worms cause elephantiasis. Name the group it belongs to?

Q 42.

Give examples of egg laying mammals

Q 43.

In the hierarchy of classification, which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?

Q 44.

What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?

Q 45.

Name the organisms which are outside the classification.

Q 46.

According to the five-kingdom system, which kingdom contains organisms whose structure is composed of prokaryotic cells?

Q 47.

What is a thallus?

Q 48.

Define Cryptograms.

Q 49.

Write the differences between monocots and dicots.

Q 50.

Which animal phylum is commonly called as flatworms?