When chlorine gains a electron or When a compound like hydrogen chloride is dissolved in water.
The correct answer is: A. The hydrophilic head groups of the lipid molecules are exposed to the outside of the cell and the cytoplasm, which is a water-like environment. The hydrophobic tails form an oily layer inside the membrane that keeps water out of the cell.
Plasma membrane of the cell is arranged in a bilayer of phospholipids. Phospholipids are amphipathic molecules which means that they have both hydrophilic and hydrophobic regions. The hydrophilic heads of phospholipids that are faced outward and hydrophobic layer located in the interior of the bilayer together make a good barrier between the interior and exterior of the cell, so the water and other polar or charged substances cannot easily cross the hydrophobic core of the membrane.
<span>The
answer is the placenta. This occurs beginning the fourth month of pregnancy.
In the first three months after release of the ovum and conception the empty follicle turns
into a corpus luteum. The corpus luteum
mainly produces progesterone and oestrogen. Progesterone is responsible for preparation
of the uterine wall for inception. </span>
The answer for this question is CIRCULAR. hope it works.
Answer:
you're right it is deletion
Explanation: