How would you determine whether a metabolic reaction might require coupling to ATP hydrolysis? Which is the correct answer? A) Determine how often the reaction is used in the cell
B) Determine how fast the reaction occurs
C) Determine whether the reaction has a negative or positive delta GD) Determine how many reactants and products are involved in the reaction

answer; i believe that the correct answer is (lung);

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

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 answer would be..

b. sucking