Who is the biggest ecosystem in the world?

Nucleic acid certain protein cell membranes certain carbohydrates

Which step is not included in the step approach to calculating the greatest common divisor?

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.