Avegetarian diet
a. may be lacking in certain vitamins and minerals.
b. can be a healthy way of eating.
c. may be lacking in protein.
d. all of the above

Which is an example of a food group? a. oils b. vegetables c. water d. sweets

Which is the lipid molecule that controls what types of molecules can pass though?

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides. b) replication of their genomes does not involve proofreading. c) rna viruses can incorporate a variety of nonstandard bases. d) rna viruses are more sensitive to mutagens.