Which best describes the structure of a DNA molecule? a. Two strands of dna linked together.
b. Two strands of amino acids linked together
c. Two strands of rna linked together
d. A strand of dna linked to a strand of rna
I'm between the top two. Please help guys!

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

What are some natural processes that represent physical and chemical changes?