What is one reason some leaves are spiny, or needle-shaped? A. to increase the rate of formation of food in leaves B. to reduce water loss from leaves in dry climate C. to store food in dry climates?

A cherry tree is an example of a

What is the process by which plants convert carbon dioxide into energy-rich carbon compounds?

The bacterium commonly responsible for impetigo is

Suppose that an ecosystem experience a decline in a major species of consumer. How might the ecosystem food web be affected?

These notes were taken during a class about biological evolution, but the subject title is missing. -results from immigration -new genes brought into a population -variation in a population increases What do the notes describe? A. gene flow B.

What happens when the lungs recoil? A. Inspiration occurs. B. Internal respiration occurs. C. Ribs and diaphragm muscles contract. D. Expiration occurs.

Which of these is NOT a reproductive isolating mechanism? geographic temporal behavioral all of these are reproductive isolating mechanisms

What type of intrusive igneous rock texture has the largest crystals

Between x = 2 and x = 3, which function has a larger average rate of change than f (x) = 2x has? A) g (x) = (2/3) - x B) k (x) = 5x-2 C) h (x) = 4x-1 D) j (x) = (1/2) - x+1

How can we unlock the 90% of our brain that we never use