Answer:
Excitation-contraction coupling refers to the events that link the action potentials on the sarcolemma to activation of the <u>Ca+ channels </u> . It begins with the arrival of the <u>action potential</u> at the neuromuscular junction.
Explanation:
The action potential travels from the neuron and it is transmitted to the muscle through the neuromuscular junction, which is the place where the neuron and the muscle join. Once that the action potential is in the muscle this will open Ca+ channels in order to let the Ca+ enter the muscle fiber and produce the contraction in the sarcomere.
Answer:
Because the screen becomes black and the screen lets the light come. Hope this helps!!
Explanation:
Yes. In the beginning, glycolysis requires 2 ATP molecules.
One ATP allows for the phosphorylation of the glucose molecule to fructose-6-phosphate and another phosphorylation to fructose-1,
6-biphosphate. The fructose-1, 6- bisphosphate
is then cleaved into two glyceraldehyde-3-phosphates that then enter the energy
generating part of the glycolysis biochemical reaction.
Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes.
Explanation:
Answer:
positive mutations means positive impacts of mutations i.e it leads to mutations. while negative effects leads to chromatic aberration that occurs during phenyl ketonuria!
If this helped you mark me brainliest (=^o^=)