Enzymes are catalysts, meaning that they are proteins that speed up reactions. So without them, there would be barely any activity.
Living creatures and the soil exchange phosphorus. Phosphates are taken up by plants from the soil and assimilated into organic molecules. Plants are consumed by animals, which then moves phosphorous up the food chain from one animal to the next. When an animal perishes and decomposes, phosphorus is released back into the soil.
Id say that the best answer is Loess. I say that cause loess means a loosely compacted yellowish-gray deposit of windblown sediment of which extensive deposits occur.
Hoped this helped ;)
The main difference between them is their size.
Answer:
Intracellular mediator or the secondary messenger molecules
Explanation:
The hormones act on the target cell or a group of target cells by binding to the hormone receptors present in the membrane of the target cells.
The hormones which are composed of the lipids bins to the intracellular receptors but the amino acid-based hormones are not able to diffuse into the cell and thus binds to the membrane-bound receptors.
This involves the signal transduction by the production of the secondary messenger molecules. The messenger molecules act as intracellular mediators like the cyclic AMP, cyclic GMP and the cyclic CMP.
Thus, the secondary messenger is the correct answer.