How do cells know how to develop within a multicellular organism

a. they all develop in exactly the same way.

b. they receive instructions in their dna

c. they follow a pattern that comes from outside the cell.

d. they learn as they go along.
wich is right?

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime