Question

a) Transport of substance against the concentration gradient by using energy is called___________ transport.

b) Temperature in air ___________ the rate of transpiration.

c) Thyroid gland secretes hormone ___________.

d) Hormones are called ___________ messengers.

e) Spores are formed during ___________ condition.​

Answer 1

A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen. A pure substance does not have to be of a single element or compound.

Answer 2

Answer:

a) Active Transport

b) Increases

c) Thyroxine

d) chemical

e) unfavorable

Explanation:

a) Active means using energy.

b) Increase in Temperature starts evaporating the surface water.

c) T3 Hormone , which get converted into T4 ( Thyroxine) hormone.

d) Hormones are chemicals (proteins), thereby called chemical messengers.

e) Unfavorable condition are dealt by resistant, dormant, protective spores.