The "conducting zone" of a neuron is found at the ____.?

Enzymes function to:

A. react with other enzymes to form a product. B. catalyze chemical reactions. C. transport molecules and ions across membranes. D. regulate messages between cells.

The Earth is spherical, which causes differences in the intensity of solar radiation at different latitudes. The Earth is also titled on its axis at a 23.5? angle. How do you think this tilt affects the intensity of solar radiation?

A. In the Northern and Southern hemispheres, equal latitudes receive the sun's rays at equal angles year round.
B. The Northern hemisphere has a lower intensity of solar radiation than the Southern hemisphere because it is tilted away from the Sun year round.
C. The sun's rays strike the Northern hemisphere more obliquely during its summer months and less obliquely during its winter months.
D. The Northern hemisphere has a higher intensity of solar radiation than the Southern hemisphere because it is tilted toward the Sun year round.
E. The sun's rays strike the Northern hemisphere more obliquely during its winter months and less obliquely during its summer months.

Once formed, sperm are stored in the epididymus. Indicate whether the statement is true or false

What tissue comprises the outer bark of woody plants?

a. ground tissue b. epidermis c. phloem d. periderm e. xylem