Which of the following are not included in the big 6

When analyzing tree rings, what do scientists assume a thin ring indicates?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.