PL HELP! What is either broken down or released during the first stage of cellular respiration? glucose
oxygen
water
energy
carbon dioxide

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.