Earth's most recent era is the

1. Which mechanism requires energy to move materials? a. exocytosis b. osmosis c. diffusion of ions through potassium channel 2. Facilitated diffusion is a process that involves ___. a. the expenditure of energy as ATP b.

Dead animals and plants, and wastes (e. g. faeces) I need the definition

What is common to the carbon cycle, the nitrogen cycle and the water cycle?

How many letters of mRNA code for an amino acid?

How do tides differ from waves and gravity

The layer of the epidermis that contains cells undergoing division is the

Additio of more myoglobin to a muscle fiber would have the largest effect on what

Unlike living organisms, a virus requires what in order to replicate? *Host cell *Nucleus *Cell wall *RNA

In what ways does the nile river support life

How did the carbon atom get into cellular respiration