The pond behind serge's house, with all the living and non-living parts, is an example of a(n)
a) biome.
b) ecosystem.
c) habitat.
d) population.

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?