SS1: BIOLOGY - 1ST TERM
Introduction to Biology | Week 16 Topics|1 Quiz
Recognizing Living Things | Week 23 Topics|1 Quiz
Organisation of Life | Week 33 Topics
Classification of Living Organisms | Week 47 Topics|1 Quiz
Kingdom Prokaryotae / Monera & Kingdom Protista | Week 53 Topics|3 Quizzes
Kingdom Fungi & Kingdom Plantae | Week 69 Topics|2 Quizzes
Kingdom Animalia I | Week 76 Topics|1 Quiz
Kingdom Animalia II | Week 85 Topics|1 Quiz
The Cell | Week 93 Topics|1 Quiz
The Cell Structure and Functions | Week 104 Topics|1 Quiz
The Cell and its Environment | Week 114 Topics|1 Quiz
Nutrition in Plants | Week 124 Topics|1 Quiz
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Characteristics of Living Things
All living things whether plants or animals show the characteristics below;
1. Cellular Structure: All living things have a cellular structure. All living things are made up of one or more cells.
2. Movement: This is an activity by an organism which causes a change in position. Most single-celled organisms and animals move from one place to another with the aid of their locomotory organs. Fungi and plants show limited movements with parts of their body.
3. Respiration: This is the oxidation of food substances such as glucose in cells to release energy
4. Nutrition: This refers to the taking in, digesting, absorbing, and utilizing food in animals. Plants require light, Carbon-dioxide, water, and mineral salts to make their food through photosynthesis.
5. Irritability/Sensitivity: This is the ability to detect and respond to stimuli.
6. Growth: This is the permanent or irreversible increase in the size of an organism.
7. Excretion: Excretion is the removal of metabolic wastes from the body of an organism.
8. Reproduction: This is the process by which an organism gives rise to offspring of its same kind. In other words, it is the process by which organisms gives rise to genetically identical organism i.e. organisms of the same species. The process may be asexual if only one parent is involved and sexual if two parents are involved and there is a fusion of gametes.
9. Adaptation: Living things are able to suit or modify themselves to cope with changes within their internal and external environment. It increases their chances of survival within their environment
10. Competition: All living things struggle for survival in order to live. They struggle for space, light, water, food, and reproductive mates.
11. Life Span: All living things have a definite period of existence.