The two structures that limit transpiration are known as

a. Guard cells and xylem

b. Stomata and guard cells

c. xylem and phloem

d. stomata and phloem

Which of the following is NOT a characteristic of all living things

Aldosterone stimulates an increase in sodium reabsorption at the same time it stimulates an increase in potassium secretion. aldosterone stimulates an increase in sodium reabsorption at the same time it stimulates an increase in potassium secretion.

Nitrogen is required for growth it is considered an essintisl

In Rabbits, there are four different version of the gene for coat color. What pattern of inheritance is this?

A new experimental drug has been invented that has the potential to cure patients who are dying from leukemia. If the drug has not yet been authorized for use, would it be ethical for a doctor to use it in order to save his patients? A.

The phosphorus-containing head of a phospholipid attracts water and is

What are at least three possible challenges Darwin might have faced

Which two spheres contain most of earths water?

What is the name of a complex group of organisms that are connected and interact with one another?

Oceanic crust is composed mainly of basalt. continental crust is composed mainly of granite. why does oceanic crust generally tend to subduct under continental crust when plates collide