Chapter 1 - What Is Biology?

Question 1

What is the meaning of biology?

Answer 1

The study of living things. The common division is Botany and Zoology.

Question 2

What are the characteristics of living things?

Answer 2

1. Movement - living organisms need to move in order to obtain the resources needed.
2. Sensitivity - living organisms are sensitive; react to thing around them.
3. Growth - substances are taken in and built into the structures of the body.
4. Feeding - living organisms need food to survive; for energy.
5. Respiration - getting energy out of food.
6. Excretion - all living things create waste substances which they must excrete.
7. Reproduction - all living things must make new individuals.

Question 3

What must living things be made up of?

Answer 3

The seven characteristics and cells.

Question 4

What are two ways of reproduction? Explain.

Answer 4

1. Sexual reproduction - involving 2 organisms and by the use of gametes which join.
2. Asexual reproduction - one organism which can produce without the use of gametes.

Question 5

What are the two types of feeding? Explain.

Answer 5

1. Plants - autotrophs - make their own food by photosynthesis.
2. Animals - heterotrophs - feed on ready made food by eating other organisms.