The instructions for making proteins come originally from A) RNA. B) ribosomes. C) DNA. D) amino acids.

Which molecule is incorrectly matched with its monomer? a. nucleic acids; nucleotide b. protein; amino acid c. starch; lipid

When can a species develop generic diversity

Which does the letter A represent in the diagram? A centriole B) is elminated C centromere D spindle

What's the purpose of natural selection

Salivary amylase is produced by what

What experimental evidence leads scientists to believe that only quantized electronic energy states exist in atoms?

With which atoms does carbon most frequently bond

What is a karyotype?

A scientist has been working for 15 years to develop a new type of plastic material, but she has not yet been successful. Which of the following best explains why her work is still a success?

Technology can have good and bad effects. What is a bad effect of spraying pesticides on crops