Which of the following are true about the interactions between or among the integumentary, muscular, and skeletal systems of the human body?
i. the skin of the integumentary system protects the muscles of the muscular system and the bones of the skeletal system from the outside environment.

ii. the muscles of the muscular system contract or relax to move the bones of the skeletal system.

iii. the bones of the skeletal system and the skin of the integumentary system work together to provide protection for the human body.

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)

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.