Question

Which kind of excretory waste is characteristic to fish and what is the fate of this discharge?

(a) Liquid uric acid, gets dissolved in water
(b) Liquid urea, gets dissolved in water
(c) Gaseous Ammonia, gets dissolved in water
(d) Semi-solid uric acid sinks downwards

Pollination refers to the

(a) transfer of pollen from anther to stigma
(b) transfer of female gametes from anther to stigma
(c) transfer of pollen from anther to ovary
(d) transfer of pollen from anther to ovule

Humans chew the food only when they have food in their mouths, but buffaloes chew continuously even when they are not eating grass. What could be the reason behind this fact?

(a) Buffaloes chew continuously because they store undigested grass in their mouth.
(b) Buffaloes chew continuously to remove the stuck food particles from their mouthparts.
(c) Buffaloes chew continuously because cud, the partially digested food, returns to their mouth in small lumps.
(d) Buffaloes chew continuously to collect saliva in their mouth so that more bacteria can be formed in their mouth.

Ravi recorded that at rest, he was breathing in and out at the rate of 18 times per minute. After playing the football for 15 minutes, his breathing rate increased up to 27 times per minute. What could be the reason for this change in breathing rate?

(a) To fulfil the increased demand for water by the body
(b) To fulfil the increased demand for oxygen by the body
(c) To fulfil the increased demand for energy by the body
(d) To fulfil the increased demand for carbon dioxide by the body
marking as brainlist if you answer right and help

Answer 1

Answer:

pollination refer to transfer of pollen grain from anther to stigma