Answer:
The right answer to this question is option A) island forms and mainland forms descended from common ancestors.
It's known in science that a long time ago, all the continents were only one, united all together in a bigger one. This can be observed by the way every continent can fit another one.
A proof of that too, is evolution, when we find organisms in an island that share some characteristics with organisms from another island, that can mean some things, they come from the same place, or these islands share characteristics that lead these organisms to be this way through evolution.
The answer should be competitive inhibitors
The plasma membrane of axon is called axolemma. The potassium and sodium leak channels leak the sodium and potassium ions inside the cell respectively. The leak channels provide the constant movement of ions across the membrane. Potassium and sodium ions are positively charged, thus entry of positively charged ions inside the cell makes the cell more positively charged than the environment outside the cell. The environment outside the cell becomes more negatively charged. This leads in the negative membrane potential of axolemma.
It reaming most often the process of fossilization.
Pelvic inflammatory diseases (PID)
<span>Pelvic inflammatory
diseases (PID) is an diseases that affect 10-40% of women who had an infection
of either gonorrhea or chlamydia and it usually occur when the initial
infection such as chlamydia or gonorrhea
travels upward with other bacterias beyond the the cervix into the uterus,ovaries,
oviducts and pelvic cavity. However, PID is major cause of infertility in young
women.</span>