The carbon to produce carbohydrates in the second stage of photosynthesis comes from

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

What causes the phospholipids to organize themselves the way they do

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.