<span>The substance that aids in the transport of glucose from outside of the cell to inside of the cell are the protein. The answer is letter C. There is a thing called channel protein that allows the transport of specific substance across the cell membrane. </span>
Answer:
That is C.) blastocyst. I hope this helps! :)
<span>biome
</span>A biome is a large-scale category containing many communities of a similar nature, and its location is largely controlled by climate
NOT:
population
ecosystem
<span>none of the above</span>
Answer:
Your answer is B) Mutations lead to genetic variation.
Think of it like this, when rays were first starting to develop, they probably started with only one kind, stingless. Somewhere down the line, the genes of the rays started to mutate and eventually, there were stingrays and stingless rays. Now at this point there are predators that frequently feast upon the rays, so which of the two rays are more likely to defend themselves, and get away to live long enough to reproduce and pass on their genes? The stingrays! The mutation that may have occurred millions of years ago, has determined which organisms were more fit for a changing environment.
