1. Characteristics of Life
Review for Test

2. Know the six characteristics of all living things
All living things have one or more cells
All living things have DNA
All living things grow and develop
All living things reproduce
All living things use energy
All living things respond to stimuli

3. Know the four necessities
Food
Water
Air
Shelter

4. Is a river alive? A. Yes because it can move
B. Yes, because it can change directions
C. No it does not have DNA, it cannot reproduce, and it does not have cells
ANSWER:
C. No a river does not have DNA, it cannot reproduce, it does not have cells

5. What is needed for chemical reactions?
Air
Gasoline
Water
ANSWER: C.
Water is need for chemical reactions

6. An infant to an adult is an example of which characteristic?
Made up of cells
Reproduction
Grow and develop
ANSWER: C. Grow and Develop

7. How is homeostasis related to a dog and his fur?
It keeps the dog healthy
It keeps the dog’s body temperature stable
It colors the dog’s hair
ANSWER: B
It keeps the dog’s body temperature stable

8. An amoeba contains all the materials necessary for life
An amoeba contains all the materials necessary for life. Which of the following correctly describes it?
It is multicellular
It is unicellular
It can be seen with the naked eye
ANSWER: B
It is unicellular

9. How are sexual reproduction and asexual reproduction different?
Both require two parents
Both require no parents
Asexual reproduction does not require two parents
Sexual reproduction does not require two parents
ANSWER: C. Asexual reproduction
does not require two parents

10. DNA stands for what? Dinoribonucleic acid Deoxyribonucleic acid
Deoxynitrogenous acid
ANSWER: B

11. If I shine a flashlight in your eye your pupil shrinks
If I shine a flashlight in your eye your pupil shrinks. In this case your pupil shrinking is ______.
A. a response
B. a stimulus
C. homeostasis
Answer: A. a response

12. Plants use carbon dioxide, water, and the sun’s energy to make their own food. Which of the following are they?
A. producer
B. consumer
C. decomposer
Answer: A. producer

13. This chemical is the major source of energy for the body.
A. carbohydrate
B. protein
C. lipid
Answer: A.

14. Muscles and fingernails are examples of which molecule?
carbohydrate
protein
lipid
ANSWER: B
protein

15. What molecule is an important part of the cell membrane?
protein
carbohydrate
lipid
ANSWER: C. Lipid