unit 23

Question 1

accurate

Answer 1

adj. If something is accurate’ it is completely correct. The story in the newspaper wasn’t very accurate.

Question 2

analyze

Answer 2

v. To analyze something is to study it. The scientist will analyze the blood sample.

Question 3

asteroid

Answer 3

n. An asteroid is a giant rock from outer space. In 1908’ a giant asteroid hit Siberia.

Question 4

controversy

Answer 4

n. A controversy is a dispute about something that affects many people. There has been a lot of controversy over the judge’s decision.

Question 5

evolve

Answer 5

v. To evolve is to change over time. Many people think that humans evolved from animals.

Question 6

factor

Answer 6

n. A factor is something that has an effect on the way another thing happens. Smoking is the main factor that causes lung cancer.

Question 7

genetic

Answer 7

adj. If something is genetic’ it is related to the genes in one’s body. The color of one’s eyes is genetic.

Question 8

genome

Answer 8

n. A genome is the collection of all the genes in a living thing. Understanding the human genome may help cure many diseases.

Question 9

identical

Answer 9

adj. To be identical is to be the same as someone or something else. James and John are identical twins.

Question 10

intellectual

Answer 10

n. An intellectual is a very smart person. We’ve always considered my Uncle Max to be the intellectual of the family.

Question 11

majority

Answer 11

n. A majority of something is more than half of the people or things in that group. A majority of the people voted for Tom Smith in the election.

Question 12

mammal

Answer 12

n. A mammal is an animal that usually has hair and is not born from an egg. Even though they live in water’ whales are actually mammals.

Question 13

multiply

Answer 13

v. To multiply is to increase in number. In the past year’ the number of people at work has multiplied by ten percent.

Question 14

offspring

Answer 14

n. Offspring are the children of a person or the babies of an animal. The dog’s offspring had the same color of fur as she did.

Question 15

pesticide

Answer 15

n. A pesticide is a substance used to kill insects. The farmer sprayed his crops with a pesticide to keep bugs away.

Question 16

regulate

Answer 16

v. To regulate something is to control how it happens. The bank regulates how much money people can borrow.

Question 17

Oreinforce

Answer 17

v. To reinforce something is to make it stronger. Peter reinforced his opinion with information from a book.

Question 18

Ostricken

Answer 18

adj. If someone or something is stricken by a disease or problem’ they are badly affected by it. The pilot landed the stricken airplane with difficulty.

Question 19

vast

Answer 19

adj. If something is vast’ it is very large. The wealthy man bought a vast amount of land in the countryside.

Question 20

vegetarian

Answer 20

n. A vegetarian is someone who does not eat any meat products. I became a vegetarian because I don’t like the taste of meat.