What is the ultimate source of energy that drives a food chain?

Which of the following can result in speciation from bio geographic isolation

What are two ways to reduce air pollution and slow climate change?

Explain the difference between abiotic factors that may be found in a desert compared to a temperate forest

The human body works to keep blood within a certain pH range. This is an example of A homeostasis. B digestion. C respiration. D synthesis.

What are important differences in the overall metabolic needs of a fish and a turtle and the ability of their circulatory systems to meet those needs? check all that apply?

In fruit flies long wings (W) are dominant to short wings. What is the phenotype of the known parent

Bromothymol blue is placed into water and a student blows bubbles into it to change the color to yellow. A plant is placed in each test tube. One is placed in the light and one is placed in the dark.

A scientist is conducting an experiment to test a hypothesis. If the data from the experiment does not support the hypothesis, the research is not a waste of time because - A no additional research needs to be conducted B the question was answered

Which of the following types of models is most likely to be used to predict earthquakes? a. idea model b. physical model computer model d. none of the above

What allows members of the same species to have different characteristics