Does the skeletal system produce vitamin D

Which of the following is not an example of active transport? (their multiple answers) 1 facilitated diffusion 2 osmosis 3 diffusion

Item 5 Animal A and Animal B each have 95% of their DNA in common. Animal A and Animal C each have 50% of their DNA in common.

Wrinkles and sagging skin in elderly individuals are the result of

Where might an enzyme be found in a cell?

What is the ultimate source of energy that drives the food chain

Which is a type of star system? A. dim stars B. galaxies C. wobbling stars D. globular clusters

two population of finches live on separate islands and rarely move from one island to another this is an example of

In humans, black hair (B) is dominant over red hair (b) and having six fingers (F) is dominant over having five fingers (f). Sally has black hair and five fingers. Her father has red hair. Sally marries Bill who has red hair and six fingers.

Which group of elements shares characteristics with both metals and nonmetals?

Where and how does ammonification / nitrification take place