Which type of symbiosis is the relationship between plants and nitrogen
fixing bacteria?
Parasitism
Commensalism
Mutualism
Predation

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what

High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. by changing the amount of water in the blood, blood pressure can change. the excretory system can to lower blood pressure. which would most likely occur in the kidney? a)more water would be transferred from the nephron. b)less water would be absorbed into the nephron. c)the amount of water in the bladder would decrease. d)the amount of water in the blood would increase.