Hello, Lead082656. The debates of the embryonic stem cell research are pretty heavy to digest. There's always two sides to the debate: do not destroy a human life to research it and the other one would be to take the stem cells of the embryo and find a cure for other people's diseases and illnesses. More people want to argue the first one instead of the second one, which is why there is more debating going on instead of research. I hope I helped!! If you have more questions then let me know and I will help you as much as I can. Have a great day!!
Answer:
c parisite/host
Explanation:
the tapeworm may be affecting the cow whicvh hurts so in this case its a parisite
Answer:
Differential reproduction leads to a change in allele frequencies over time. This occurs because of natural selection favoring "successful" individuals that produce more viable offspring.
The sickle-cell allele is maintained in populations exposed to malaria through balancing selection, since heterozygous individuals have protection against the disease.