What keeps Mars in orbit around the Sun?

Select one:

a. friction

b. gravity

c. magnetism

d. solar power

Which skin layer contains pigmentation? epidermis dermis fatty tissue

Summarize how urine forms in the kidney.

A bond of the following elements would be of what type? Na + Cl Covalent or ionic

How does the steepness of the concentration gradient influence the rate of transport?

What organelles are larger in plant cells than animal cells?

Why did the average life expectancy fall during the Black Death? Select one: a. The plague affected mostly the elderly, especially women. b. The principle victims were infants and young adults. c. There was high infant and elderly mortality. d.

Plants produce carbon dioxide as a product of cellular respiration but you know that plants release oxygen carbon dioxide develop a logical argument for how this is possible

Rna polymerase binds to regions pf dna called blank which are start sinals for transcription

When a cells volume becomes to great for the surface area to maintain the cell will A) die. B) divide. C) grow. D) move.

Fatty acids and glycerol are produced from the metabolism of