Acell's membrane is composed of two layers of lipid molecules. what is the main function of a cell membrane?

In a vegetable garden 45 bean plants have been eaten by deer 5 are untouched what is the frequency of bean plants in the garden that have been eaten?

If 360 joules of work are needed to move and create a distance of 4 m what is the weight of the crate

Which of the following would involve looking at different structures of organisms and comparing how similar they are? a. vestigial structuresb. radiometric datingc. homologous structures