Which of the 4 types of macromolecules (carbohydrates, lipids, proteins or nucleic acids) are receptors?

1. a tropical dry forest carries out more rapid nutrient cycling

hammurabi rulers

good lesson

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he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )