The phylum with endoderm, mesoderm, and ectoderm is

a. Cnidaria.

b. Porifera.

c. Platyhelminthes.

d. all of the above.

What is the difference between a population showing exponential growth and a population showing logistic growth?

What is the source of energy of all cellular activities in living organisms? A.) ATP B.) lactic acid C.) pyruvic acid D.) glucose

What animals hibernate in the winter time?

A population of Drosophila simulans carries three alleles at the white locus: the wild-type allele at 86 percent, w1 at 9 percent, and w2 at 5 percent. What can we say about this locus population

Which of these is a harmful interaction between living things?

What scientist discovered cells by observing cork with a homemade microscope

How can scientists learn about the evolution of eyes, given that there is very little fossil evidence?

Which population would increase most if the insects were eliminated

What mineral is used as a coating for steel?

How do earthquakes at divergent plate boundaries differ from those at convergent plate boundaries? Earthquakes at divergent boundaries are deeper and more severe. Earthquakes at divergent boundaries are almost always larger.