What is true about one strand of dna?

a. it contains many proteins.
b. it contains many pieces of rna.
c. it contains many chromosomes.
d. it contains many genes.

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

What must be true for natural selection to heppen

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.