Read this excerpt from holes.
at the time, elya thought nothing of the curse. he was just a fifteen-year-old kid, and “eternity” didn’t seem much longer than a week from tuesday. besides, he liked madame zeroni and would be glad to carry her up the mountain. he would have done it right then and there, but he wasn’t yet strong enough.

how does this section of the flashback relate to stanley? a. elya was much older during his difficult time than stanley was during his. b. elya’s physical weakness parallels stanley’s physical weakness. c. elya, like stanley, lives in the moment and does not consider the future. d. elya, like stanley, likes the character who is giving him a hard time.

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

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.

answer///(c) the maximum number of organisms an environment can support for a long time; i believe this is correct, plz check luck;