ANSWER ASAP Amphibians are examples of animals that are tracked during environmental studies. This is because they are often sensitive to the effects of acid rain, pesticides, and other pollutants. Because of this, they are often referred to as a species.

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

18. how do the cells in meiosis differ from the cells in mitosis?

Many body systems work together for proper functioning of the body and to maintain internal homeostasis. the works to break down food eaten before exercising. the takes in the nutrients obtained from the food. the body sweats as a mechanism to cool off, because the is working to flush out toxins.