Chemical coordination in plants — Biology STD 10 — Question

Name the Following :
An individual having similar pair of genes.

Write a sentence of the following:
Telomere

Given below are of five terms. Rewrite the terms in their correct order so as to be in logical sequence.
Renal artery, urethra, ureter, kidney, urinary bladder.

Name the Following :
The chemical substances released by the plants that help in creating responses to stimuli.

Gradual and orderly change from one form to another

Name the Following :
The organ which produces urea.

A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.
Why was the plant placed in the dark before beginning the experiment?

Name any two renewable resources for the mankind.

Name the Following :
A plant in which stomata are totally absent.

The pollution caused due to use of pesticides in agriculture.