Answer:
fossils, anatomy, molecular biology, direct observation, biogeography
Explanation: i think theres 5 . hope this helpss
Answer:
Get energy, maintain health and reproduce.
Explanation:
Specifically, these single must transport materials, obtain and use energy, dispose of waters, and continuously respond to their environment.
The correct answer is letter A. The disk soaked in distilled water is the controlled variable because it is the only differential factor from all of the other variables which are all disinfectants. Controlled variables are elements that are not changed throughout the experiment. When something is unchanged it is better for scientists to analyze the relationships of other variables better.
Answer:
it can also cause environmental and social threats, such as damaged wildlife habitat, harmed water quality, obstructed fish migration, and diminished recreational benefits of rivers.
Explanation:
hope this helps