The factor that is responsible for the phenomenon of the blood group B being almost absent in Native Americans whose ancestors arrived in very small numbers about 10,000 years ago would be called the 'founder effect'.
The opening and closing of ligan-gated ion channels
Yas through elctrochemical signals basically ur right and true X
Answer:
l think that it's plants A &C, can you please mark me the brainest, hope this helps.
The stage that scientists begin to ask questions and attempt to explain observations is A. forming hypotheses. This is because a hypothesis is basically a testable question about observations scientists make.
