Biology

Diversity in Living Organisms

Question:

Why bryophytes are called the amphibians of the plant kingdom?

Answer:

Bryophytes are known as 'amphibians of the plant kingdom' because these plants can live in soil but are dependent on water for sexual reproduction.Usually, they are found in humid and damp areas.

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Diversity in Living Organisms

Q 1.

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

Q 2.

Give three examples of the range of variations that you see in lifeforms around you.

Q 3.

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

Q 4.

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

Q 5.

Do sponges have a nervous system?

Q 6.

Name a parasitic disease caused by members of Nematoda.

Q 7.

Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?

Q 8.

Amar, Ujala and Anara wrote the scientic name of mango as follows. Who wrote it correctly.
Amar - Mangifera Indica
Ujala - Mangifera indica
Anara - mangifera indica

Q 9.

Give two examples of Bryophyta plants?

Q 10.

Pines and Deodar belong to which group of Plants?

Q 11.

Sunflower, Maize, Wheat and Pea belong to which group of plants?

Q 12.

Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?

Q 13.

Which is the largest group of animals?

Q 14.

What is the main basis of differentiation between vertebrates and non-vertebrates?

Q 15.

Four Chambered heart, mostly viviparous, skin covered with hairs, skin contains sweat and oil glands, four chambered heart. Which category of vertebrates are we talking about?

Q 16.

What do you mean by biodiversity?

Q 17.

Why is there a need for classification and systematic naming of living organisms?

Q 18.

Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?

Q 19.

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

Q 20.

In which kingdom, you will place an organism which is multicellular, eukaryotic, heterotroph, lacks chlorophyll and has an ingestive mode of nutrition.

Q 21.

Name the organisms which are outside the classification.

Q 22.

Blue-green algae are classified with bacteria and placed in kingdom Monera.

Q 23.

What is Symbiotic? Give an example of organisms which exhibit this relationship.

Q 24.

Which division among plants has the simplest organisms?

Q 25.

How Phanerogams are divided further chiefly?

Q 26.

Define Cryptograms.

Q 27.

How do gymnosperms and angiosperms differ from each other?

Q 28.

Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly

Q 29.

Give examples of Porifera or Sponges.

Q 30.

Identify the phylum having following characteristics:

Q 31.

What are four main features of phylum coelenterates?

Q 32.

Animals belong to phylum Coelenterata are diploblastic. What do you mean by the term diploblastic?

Q 33.

Which animal phylum is considered to be first triploblastic animals?

Q 34.

Write important features about Phylum Platyhelminthes.

Q 35.

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

Q 36.

Differentiate between Annelida and Nematode.

Q 37.

Name the largest group (phylum) of animals.

Q 38.

Give examples of Arthropod animals.

Q 39.

How is a body of Arthropods segmented?

Q 40.

What is the type of circulatory system present in Arthropods?

Q 41.

How do annelid animals differ from arthropods?

Q 42.

Give examples of animals that belong to Phylum Mollusca.

Q 43.

How is locomotion brought in animals belonging to Mollusca phylum?

Q 44.

Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.

Q 45.

Why are Bats and whales classified as mammals?

Q 46.

Name the substance which makes the cell wall of fungi.

Q 47.

Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.

Q 48.

In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?

Q 49.

Give examples of the organisms that have cilia and flagellum for moving around.

Q 50.

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