Scientists find the fossilized remains of a fish in the middle rock layers of a research site. They find the fossil of an insect in the lowest rock layers. What can be concluded from this evidence?

A. the insect lived before the fish

B. the insect lived on the bottom of the ocean that the fish lived in

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart

Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.