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Vocabulary Preview
A Choose the correct word for each definition.
shallow resemble mollusk barrier cancer
sea star cell sense threat pollutant
1. barrier : n. a physical object that keeps two areas, people, etc. apart
2. sea star : n. a sea creature with five arms
3. cancer : n. a serious disease involving abnormal cells that don’t stop growing
4. resemble : v. to look like or be similar to someone or something
5. mollusk : n. a sea creature with a shell and soft body
6. threat : n. a danger that something unpleasant may happen to them
7. cell : n. the smallest part of a living thing that can exist independently
8. shallow : a. measuring only a short distance from the top to the bottom
9. sense : v. to understand by a physical sensation
10. pollutant : n. something that contaminates the water or air
B Match each of the vocabulary words with the correct synonym.
Vocabulary Word Synonym
1. fascinating • • a. arm, leg, branch
2. habitat • • b. exciting, charming, attractive
3. cling • • c. home, house, place
4. limb • • d. hurt, harm, break
5. injure • • e. stick, adhere, hang onto
Unit 2 Life Science 105
A Choose the correct word for each definition.
shallow resemble mollusk barrier cancer
sea star cell sense threat pollutant
1. barrier : n. a physical object that keeps two areas, people, etc. apart
2. sea star : n. a sea creature with five arms
3. cancer : n. a serious disease involving abnormal cells that don’t stop growing
4. resemble : v. to look like or be similar to someone or something
5. mollusk : n. a sea creature with a shell and soft body
6. threat : n. a danger that something unpleasant may happen to them
7. cell : n. the smallest part of a living thing that can exist independently
8. shallow : a. measuring only a short distance from the top to the bottom
9. sense : v. to understand by a physical sensation
10. pollutant : n. something that contaminates the water or air
B Match each of the vocabulary words with the correct synonym.
Vocabulary Word Synonym
1. fascinating • • a. arm, leg, branch
2. habitat • • b. exciting, charming, attractive
3. cling • • c. home, house, place
4. limb • • d. hurt, harm, break
5. injure • • e. stick, adhere, hang onto
Unit 2 Life Science 105
