Which of the following would not diffuse through the plasma membrane by means of simple diffusion?

a lipid-soluble vitamin
a steroid hormone
oxygen
glucose

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

What best explains the inability for life to exist in earth early atmosphere

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.