Answer:
Mass
Explanation:
I'm not for sure but I think its Mass. Please let me know if that was right or wrong.
B because when erosion occurs through wind and water it takes away the topsoil for plants to grow.
Melanin is the only one out of the 3 pigments that can contribute to skin color that is actually produced in the skin itself.
If CO2 was in very small amounts then it would be the limiting factor of photosynthesis, this means the process will take place at a much slower rate because it is lacking one of the raw materials it needs for the process to occur. To find the optimum light intensity you really need all other factors to be at optimum levels or in abundance.
Answer:
1st blank-- villi
2nd blank-- surface area
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>u</em><em> </em><em>dude</em><em>(^^)</em>