Science (English Medium) Class 11 - CBSE Question Bank Solutions

What are the peculiar features that you find in parasitic platyhelminthes?

Water vascular system is the characteristic of which group of the following:

Segmentation in the body is first observed in which of the following:

Describe modifications of stem with suitable examples

Why are xylem and phloem called complex tissues?

What are the following and where do you find them in the animal body?

Axons

Explain macronutrients with examples

Explain micronutrients with examples

ADH helps in water elimination, making the urine hypotonic.

What is the significance of juxta glomerular apparatus (JGA) in kidney function?

Describe the important steps in muscle contraction.

Botanical gardens and zoological parks have ______.

Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of ______.

Couplet in taxonomic key means.

What is a Monograph?

Which is the largest botanical garden in the world? Name a few well known botanical gardens in India.

A plant species shows several morphological variations in response to altitudinal gradient. When grown under similar conditions of growth, the morphological variations disappear and all the variants have common morphology. What are these variants called?

How do you prepare your own herbarium sheets? What are the different tools you carry with you while collecting plants for the preparation of a herbarium? What information should a preserved plant material on the herbarium sheet provide for taxonomical studies?

What are taxonomical aids? Give the importance of herbaria and museums. How are Botanical gardens and Zoological parks useful in conserving biodiversity?

A student of taxonomy was puzzled when told by his professor to look for a key to identify a plant. He went to his friend to clarify what ‘Key’ the professor was refering to? What would the friend explain to him?