First C.A.

Pollination is best defined as

• transfer of pollen from anther to stigma

• germination of pollen grains

• growth of pollen tube in ovule

• visiting flowers by insects

Tags

pollination

Plants receive their nutrients mainly from

• chlorophyll

• atmosphere

• light

• soil

One of the following is not a function of bones.

• Place for muscle attachment

• Protection of vital organs

• Secretion of hormones for calcium regulation in blood and bones

• Production of blood corpuscles

Plants absorb most part of water needed by them through their

• embryonic zone

• growing point

• root hairs

• zone of elongation

Process of cell division can take place by

• heterosis

• fusion

• mitosis

• None of these

Most highly intelligent mammals are

• whales

• dolphins

• elephants

• kangaroos

Myopia is connected with

• ears

• eyes

• lungs

• none of these

Night blindness is cause by lack of which vitamin?

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D

The process of cutting trees to increase the land area for agriculture. What is it called?

• Shifting cultivation

• back cultivation

• front cultivation

• control cultivation

A student trying to find out the order in which organisms appear on a cleared plot is studying one of the following

• Ecosystem

• Food chain

• Food web

• Succession