Cleaner shrimp are omnivores that get some of their nutrition from eating dead cells and parasites found on fish. The picture shows a cleaner shrimp cleaning an eel. Which type of relationship is shown between a cleaner shrimp and an eel?
predator-prey because the cleaner shrimp eats the eel's cells
А
B
commensalism because only the cleaner shrimp benefits from cleaning the eel
parasitism because only the eel benefits from being cleaned by the cleaner shrimp
С
D
mutualism because the cleaner shrimp and eel both benefit from their relationship

bal is blood alcohol level. bac will normally be higher in a person with more body fat. so the answer to your question would be, as body fat decreases, the increasing rate of bal decreases.  

the answer is: the „power stroke“ step.

muscle contraction can be divided into a few steps:

1. the release of ach (acetylcholine) in the synaptic cleft, binding of ach for its receptor and consequently opening of the ca channels.

2. the release of ca, binding of ca for the troponin

3. troponin shifting the tropomyosin, which was blocking the active site on the actin

4. myosin heads attaching to actin by breaking down atp to adp+ pi

5.   formation of the ‘cross-bridge’ on the active site of the actin filament by myosin head

6. “power stroke” -the cross bridge pulls actin, which slides over the myosin

9.     7. the release of adp completes the cross-bridge movement and atp attaches to myosin, breaking the actin-myosin cross bridge.