The Life Processes
All living things move. Both animals and plants can move. Animals can move quickly and from place to place in search of food, shelter and favourable conditions; plants on the other hand are rooted to a spot and move much more slowly by growing and responding to external stimuli, such as light. Animals move their whole body from one place to another. In plants the shoots turn towards the light and their roots grow down into the soil.
All living things reproduce
Reproduction is exhibited in both plants and animals. They multiply in number by giving rise to an offspring, thus carrying on their genes and ensuring the continuation of the species. Plants do this by producing seeds, which give rise to new plants of the same species.
Reproduction can be of two types:
1. Sexual, involving two parents and the union of two gametes, and
2. Asexual, where one parent reproduces itself.
Example : of this are strawberry plants or spider plants
producing runners or offshoots. Animals have young ones. New plants grow from seeds.
All living things are sensitive
Responsiveness or sensitivity is concerned with detecting changes in the internal or external environments and reacting to that change. All living things respond to changes It is the act of sensing a stimulus and responding to it. The stimulus can be from the changes in the environment.
Animals respond more quickly to stimuli such as heat, light, touch and chemicals, however, plants appear less sensitive and respond more slowly (e.g., growing in the direction of sunlight). Some plants, such as the touch-me-not plant, respond to touch. Living things notice changes in their surroundings and react to them.
Example : People react to the environmental changes around them.
All living things need nutrition
- Aerobic respiration uses oxygen, and releases a large amount of energy
- Anaerobic respiration does not use oxygen and releases less energy.