Which statement is a fundamental principle of the cell theory?

a.
all cells have a plasma membrane.

b.
eukaryotic cells are larger than prokaryotic cells.

c.
living organisms are composed of cells.

d.
the genetic material in cells is dna.

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.