Which of these must occur during s phase of the cell cycle so that two daughter cells can be produced during m phase?
a-the dna must be replicated.
b-the chromosomes must be joined.
c-the cytoplasm must be separated.
d-the cell membrane must be expanded

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

What is a population? a. all the members of the same species living in the same ecosystem at the same time b. the number of a species living in the same ecosystem over a period of time c. the total number of organisms living in an ecosystem at a point in time d. all the members of a food web in the same ecosystem

Which characteristics describe a spiral galaxy?