unit 21

Question 1

Column1

Answer 1

Column3

Question 2

attack

Answer 2

v. To attack something is to hurt or damage it. She watched the lizard attack its prey.

Question 3

breast

Answer 3

n. A breast is one of the two soft parts on a woman’s chest. She was diagnosed with breast cancer.

Question 4

cancer

Answer 4

n. Cancer is a serious disease that causes cells to grow abnormally. He was a leading scientist in finding a cure for cancer.

Question 5

cancerous

Answer 5

adj. Cancerous cells are the result of cancer. The exam found cancerous cells in the patient’s blood.

Question 6

cell

Answer 6

n. A cell is the smallest part of a living thing that can live by itself. A red blood cell carries oxygen.

Question 7

cigarette

Answer 7

n. A cigarette is a thinly wrapped paper tube filled with tobacco that is smoked. Cigarette smoking is terrible for your health.

Question 8

code

Answer 8

n. A code is a set of symbols used to hide or read a message. She used the code to solve the puzzle.

Question 9

cure

Answer 9

n. A cure is a medical treatment to make a sickness go away. Scientists are still working on finding a cure for diabetes.

Question 10

destruction

Answer 10

n. To damage something is to cause its destruction. The wildfires left the forest in a state of destruction.

Question 11

DNA

Answer 11

n. DNA is the short form of deoxyribonucleic acid. The police sometimes use DNA to solve crime.

Question 12

extensive

Answer 12

adj. Extensive means large in size or amount. The game drew extensive media coverage.

Question 13

female

Answer 13

adj. Female refers to women or girls. She is the only female student in her class with short hair.

Question 14

furthermore

Answer 14

adv. Furthermore means more information will be added. She’s clever’ and furthermore’ she is not afraid of work.

Question 15

gene

Answer 15

n. A gene controls what it looks like’ how an organism grows’ and how it develops. Gene therapy is sometimes used to treat an illness.

Question 16

inherit

Answer 16

v. To inherit is to receive something that is passed down from a relative. All the girls in my family inherit red hair from my great-grandmother.

Question 17

link

Answer 17

n. A link is a connection to something else. The two lines in the poem share a common link.

Question 18

male

Answer 18

adj. Male refers to men or boys. He was the only male in the store.

Question 19

population

Answer 19

n. A population is all the people living in an area. The population of our city is steadily growing.

Question 20

result

Answer 20

n. A result happens because of something else. The result of her experiment was surprising.

Question 21

sugar

Answer 21

n. Sugar comes from plants and is used to make food taste sweet. She added extra sugar to her tea.