Explain in your own words, how birth rates and death rates influence the number of organisms in an ecosystem.

Explain what happens in the large intestine to cause diarrhea or constipation. how does the function of the large intestine relate to another key resource?

The conversion of ammonia to nitrate could be accomplished by the presence of A. Nitrosomonas alone. B. Nitrobacter alone. C. Anabaena alone. D. both Nitrosomonas and Nitrobacter.

In contrast to inhalation, exhalation: Select one: a. is an active process caused by decreased intrathoracic pressure. b. occurs when the diaphragm lowers and expels air from the lungs. c.

What is the importance of crossing over?

The moon surface is covered in depressions called craters what caused most of these craters A-activities of tectonic plates B-weathering and erosion by wind and water C-the impact of debris or meteoroids D-the gradual cooling of the moon

The nurse prepares to teach an adolescent scheduled for an appendectomy about what to expect. the adolescent says, "i would rather look this up on the internet." the nurse should:

Which of a cell's organelles releases energy stored in food?

A scientist examines a fruit fly gene involved in the regulation of body development

The rate of metabolism is regulated by which hormone? A. PTH B. Aldosterone C. Thyroxin D. Calcitonin

Which systems does your skeletal system coordinate with to allow you to move?