<h2>The answer to 9 is <em><u>slippage of a block of material moving along a curved surface</u></em></h2>
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.
Explanation:
They show how all creatures have adapted such as giant dinosaurs are now tiny lizards =D<span />
Industrial revolution produced pollution, which became the reason of black pepper moth. When time passed, they became more suitable by the process of natural selection.
hope this helps!