Biology, 16.02.2022 16:30 andrewhayward
a. I band narrows as sarcomere contracts b. depolarization wave travels along sarcolemma and T-tubules c. myosin heads bind to actin fibers d. acetylcholine binds to receptors in the neuromuscular junction e. calcium is released into sarcoplasm
Answers: 2
Biology, 21.06.2019 18:00
Cells tend to have a relatively small and uniform size. why aren’t cells larger?
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Biology, 21.06.2019 21:20
Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.
Answers: 3
Biology, 22.06.2019 04:00
1) strawberry plants typically reproduce by making runners, which are miniature versions of themselves, that grow off of the roots and stems of the parent. this type of vegetative reproduction is known as a) pollination. b) fragmentation. c) binary fission. d) vegetative propogation.
Answers: 2
Biology, 22.06.2019 08:00
Reactants undergo chemical reaction to form products. this chemical equation represents one such reaction. the coefficient for one of the reactants or products is incorrect. which part of the chemical equation is incorrect?
Answers: 2
a. I band narrows as sarcomere contracts b. depolarization wave travels along sarcolemma and T-tubul...
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