A DNA molecule is like a ladder because there are two sides (the sugar-phosphate backbones of the two strands) and rungs (each rung being a pair of complementary bases). Twisted, because the molecule is twined in a coil called a helix - or rather, a double helix because there are two strands.
There are 4 thing that need to happen for natural selection to occur:
1) reproduction
2)heredity
3)variation in fitness or organisms
4)variation in individual characters of the population.
I would have to say <span>She should place one flower in a similar container, but not pump carbon dioxide into it. She should also give each plant the same amount of water. but im like 70% sure about this sorry if im wrong:)</span>
Answer: c. If you cut an onion near a person, then his/her eyes will always begin to produce tears
Explanation:
