Fats and steroids are examples of which macromolecules? a. nucleic acids
b. Lipids
c. Proteins
d. Carbohydrates

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.