Biology - Mock Test 299

Question 2981

A tissue is a 1⃣ A group of separate organs that are co ordinate in their activities?

A) A group of separate organs that are co ordinate in their activities? B) Group of similar cells tat function together in a specialized activity C) Layer of cells surrounding an organ D) Sheet of cells, one layer thick

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Question 2982

Grafting is not possible in monocots because they ?

A) Have scattered vascular bundles B) Have parallel venation C) Are herbaceous D) Lack cambium

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Question 2983

Trees at seashore do not have annual rings because?

A) There is climatic variation B) There is no marked climatic variation C) There is enough moisture in the atmosphere D) Soil is sandy

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Question 2984

The cross-section of a trunk of a tree showed 50 annual rings. The age of tree is?

A) 50 years B) 50 months C) 100 years D) 25 years

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Question 2985

Commercial cork is obtained from the species of?

A) Berberis B) Quercus C) Salix D) Betula

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Question 2986

What is the other name for the cork tissue?

A) Phellogen B) Phelloderm C) Phellem D) Periderm

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Question 2987

As a tree grows older, which increases more rapidly in thickness?

A) Sapwood B) Cortex C) Phloem D) Heartwood

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Question 2988

Lateral meristem is responsible for 1⃣ Growth in parenchyma?

A) Growth in parenchyma? B) Growth in thickness C) Growth in cortex D) Growth in length.

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Question 2989

Mesophyll tissue is well differentiated into spongy tissue and palisade tissue in?

A) Dicot leaves B) Ophytic stem C) Hydrophytic stem D) Monocot leaves

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Question 2990

Penguin is a bird that lost the use of its wings by not flying. Such a statement would express the views of ?

A) Darwin B) Wallace C) Lamarck D) Huxley

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