Why some plasmids contain a gene for resistance to an antibiotic

Two closely related species of frogs live by the same pond. Species A feeds on flies and caterpillars, while species B feeds on grasshoppers and worms. Explain how the two species coexist?

Identify the two main regions of a typical mollusk's body

How do people snorkle underwater without oxygen tank?

How does a bacterial cell protect its own dna from restriction enzymes?

Write a paragraph describing how Earth would be different if photosynthetic plants had not evolved.

Is oil or biomass abundant

Which region of a tRNA molecule binds to amino acids? a. Anticodon loop b. Codon loop c. The 3' end d. Variable loop

Enzymes are made of protein and a non protein therefore they can not be denatured? True or false?

Who was the first person to attempt to classify the living organisms on earth?

Samples as small as a few skin cells can potentially contain DNA. T/F