The packing of chromatin can be regulated by either the acetylation or deacetylation of DNA. A. True

B. False

B. False

Explanation:

The attraction between DNA and histones occurs because the histones are positively charged and the DNA is negatively charged.

B is your answer

Explanation:

answer; i believe the correct answer is (replication is not conservative);

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)