immune system, n the group of organs, cells, and chemicals that protect the body from harmful viruses, bacteria, and abnormal cells. It includes bone marrow, proteins, the thymus, the spleen, the lymphocytes, and other white blood cells.
50% from each parent: one allele in each gene, each parent, for a total of two. 2 people found this useful. Edit. Share to: 1  College Admission Interview Dos and Don'ts Some colleges offer applicants the opportunity to interview on campus or close to home.
Offspring are much different than parents. In species that produce asexually, offspring are the exact replica of their parents. Essentially, they just spread and multiply. But sexual reproduction is so much more different given that two beings are needed to form one offspring.