10 biology questions - The Science Site

1. Which part of a plant which takes water and dissolved nutrients from the ground ?

Stem

Root

Leaf

Flower

2. From where would the producer in a habitat obtain its energy?

The ground

The sun

A plant

Another animal

3. A: New plant grows B: Seeds are dispersed
C: Seeds germinate D: Flower pollinated
E: Ovules are fertilized
Write the letters in the correct order (starting with D)

D A E C B

D B C E A

D E B C A

D C B A E

4. How does exhaled air compare to inhaled air ?

They are the same.

Exhaled air contains no oxygen.

Exhaled air contains less oxygen and more carbon dioxide than inhaled air.

Exhaled air is mostly carbon dioxide.

5. Which of the following is NOT true about how human babies develop

An egg needs to fertilized by a sperm before it will develop into a baby

A developing baby is protected by the mother's body

A baby takes 9 weeks to develop into a baby

The baby develops in the mothers body in the womb (uterus)

6. How would exhaled air compare with inhaled air?

Exhaled air contains more carbon dioxide and less oxygen

Exhaled air contains less carbon dioxide and more oxygen

Inhaled air contains less oxygen and more carbon dioxide

Inhaled air contains more nitrogen and less oxygen

7. What happens when a boy reaches puberty?

(puberty is the time when his body starts to change in appearance, sometime between 10 and 14 years old)

He gets more intelligent

He starts to grow taller, his muscles develop and he is able to make sperm.

His eyes change colour

8. Which of these facts is NOT true about a boy when his body reaches puberty

Puberty often happens between the ages of 11 and 15

He is able to produce sperm

He becomes more intelligent

9. Cells reproduce by a process called binary fission.

Is binary fission an example of sexual or asexual reproduction?

Asexual reproduction

Sexual reproduction

10. What is the length of time between fertilization and the birth of a human baby?

9 weeks

24 months

2 months

9 months