Explain why carnivores are subject to biological magnification of substances like ddt and pcbs

What is the next step in muscle contraction after the actin changes shape? (apex)

Beth’s hygrometer is reading a temperature of 30 c and a relative humidity of 65%. the humidity in the air is?

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.