Which of the following is a principle of natural selection? a) most organisms are infertile or produce nonviable offspring. b) members of a species are genetically identical. c) variations are acquired during an individual's lifetime and so are not passed to offspring. d) variations allow individuals to survive and reproduce better than members who lack these variations.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Pls need ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

What goes in and out of a cell respiration?