20 chromosomes because unfertilised eggs contains half the number of bodily chromosomes
Internal fertilization protects<span> the </span>fertilized egg<span> or embryo from predation and harsh environments</span>
<span>2. This type of microscope is called a scanning electron microscope. 3. The difference between these two cells are that one has a nucleus and the other one doesn't. A eukaryotic cell has a nucleus and a prokaryotic does not.</span>
The function o the phytoplankton in ocean ecosystem is A. producer. <span>Phytoplankton produce their own energy through a biological process or chemical reaction. They are a key factor of the aquatic biome.</span>
