Answer:
A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.” The phosphate heads are thus attracted to the water
Lymphatic system & Immune system are worked by B- & T- Cells respectively. They are the antibodies which works together. When some foreign substance invade a body, then lymphatic system alters the Immune system which destroys it by an appropriate action!
Hope this helps!
Time : because the more mass the faster the speed because u know kinetic energy and height can affect potential
The right answer is to the question is D.Sr
