How does upwelling affect the fish that live close to the surface of the ocean?

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Nucleic acid certain protein cell membranes certain carbohydrates