The skeletal system serves all of the following functions except:
a. bone marrow produces red and white blood cells which carry oxygen through the blood and fight diseases.
b. the skeleton gives the human body its support, shape, and form.
c. the skeletal system to protect vital organs.
d. the skeletal system aids in the production of hormones that signal muscle and hair growth.

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

What are characteristics of minerals? select 3 choices