What is ozone? How does it protect the organisms on the earth?

(a) In human body what is the role of • seminal vesicles and • prostate gland. (b) List two functions performed by testes in human beings.

Updated 1/20/2026

Describe briefly four ways in which individuals with a particular trait may increase in population.

Updated 1/20/2026

• What is genetics? • Give the common name of the plant on which Mendel performed his experiments. • What for did Mendel use the term factors and what are these factors called now? • What are genes? Where are the genes located?

Updated 1/20/2026

Name the three major regions of human brain. Which part of brain maintains posture and equilibrium of the body?

Updated 1/20/2026

What is internal energy reserve in plants? Do the animals have the same energy reserve? Justify your answer.

Updated 1/20/2026