Question

Which of the following processes ensures the continuity of life on earth?
A) Reproduction
B) Respiration
C) Digestion
D) Growth and development

Answer 1

Hint: The process that helps in moving the life of the earth to many more years. Cells are limited in their size and the fact that as they get larger.

Complete answer:
Option A) Reproduction: Reproduction is the process of ensuring the continuity of life on earth. Reproduction is a biological process that results in the formation of new individual organisms. Reproduction is the phenomenon that is exhibited by living organisms.
Option B) Respiration: Respiration is the movement of oxygen from the outside environment to the cells within tissues. The physiological mechanism by which an organism obtains energy is referred to as respiration. Respiration is not the process that ensures continuity of life on earth.
Option C) Digestion: Digestion is the process of breakdown of large insoluble food molecules into small water-soluble food molecules. Even though digestion is required to maintain life it is not the process that ensures continuity of life on earth. The actual fragmentation of large pieces of food into smaller pieces is referred to as mechanical digestion.
Option D) Growth and development: Growth is defined as an irreversible process. Growth takes place all. After attaining maturity growth is gradual and slows down. The process of development of the shape and structure of a living organism. There are different types of growth. Development is the process where a particular organism, which not only grows physically but also mentally.

Hence the correct answer is option A.

Note:
Reproduction is the process of ensuring the continuity of life on earth. Reproduction is a phenomenon that is exhibited by living beings. Reproduction is a biological process. Three are two types of reproduction sexual and asexual reproduction.