Answer:
1) Movement: This is the process by which living things move from place to place in search of food, shelter and
mate.
2) Respiration: Respiration is the oxidative break down of complex food substances such as glucose in the cells
to release energy for vital activities.
NB: The oxidative breakdown of these substances in order to release energy takes place in the mitochondria of
the cells. For this reason, the mitochondrion (singular of mitochondria) is referred to as the “power house of
the cell”.
3) Nutrition: This is the process by which living things take in, digest, absorb, and assimilate food substances.
4)Irritability (sensitivity): This is the ability of living things to respond to stimuli (e.g. hunger, thirst or pain) in
order to survive. Stimuli could be external e.g. heat, light, water, sound and chemical substances, or internal
e.g. hunger, thirst, pain.
5) Growth: Growth is irreversible increase in size or dry weight as a result of synthesis of new body material,
increase in number of cells, cell enlargement and cell differentiation.
6) Excretion: Living things excrete. Excretion is the removal of waste products of metabolism from inside the
body.
7) Reproduction: Reproduction is the process by which an organism give rise to young ones of its own kind.
8) Competition: Living things tend to struggle for many of the necessities of life in order to survive. Therefore,
organisms usually compete for natural resources such as food, light and space.
9) Adaptation: in order to survive, every organisms possesses the ability to adapt to changes in its environment.
The inability of an organism to do so leads to its extinction.
10) Death: every organism has a definite and limited period of existence. Death occurs when conditions are
unfavourable for life processes.