Answer:
B) Symbiosis
Explanation:
Symbiotic relationships in nature means that two organisms help each other. Coral reefs are poisonous to most sea life EXCEPT the clownfish, which uses the coral as homes. The clownfish also provide food for the coral, so both benefit.
Answer:
C. 1/2
Explanation:
I took the test and got it right.
Liquid as first of all, the particles aren't compact ( which would mean solid) nor are they spread out ( which would mean gas) nor is it plasma as we aren't given protons or electrons.
Answer:
stomata are tiny pores present on a surface of leave which helps in exchange of gases
Answer:
Because natural selection selects for it. Thus it persists.
Explanation:
You have to understand heterozygote advantage. Basically, it's where heterozygotes have an advantage over homozygotes. In the case of sickle cell disease, heterozygotes have an advantage, and natural selection favors whatever is advantageous. Thus, because heterozygotes each have one recessive sickle-cell allele, as natural selection favors the heterozygotes, the recessive sickle-cell allele persists and remains in the gene pool.
