Which leg bone provides mostly support for the skeleton?

a.
femur

b.
skull

c.
clavicle

d.
sternum
6.

(10 pt)
your vertebrae, or backbone, run along your back from the base of your skull to below your waist. the shape of each vertebra can best be described as:

a.
flat

b.
short

c.
irregular

d.
long
7.

(10 pt) your femur is a bone that starts at your pelvis and ends at your knee. its shape can best be described as:

a.
long

b.
short

c.
irregular

d.
flat

they deliver oxygen to the blood

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.