Answer:
Red blood cells are a type of specialized cell that move <u>oxygen </u>and carbon dioxide throughout the body.
A structure made of two or more tissues working together to achieve a common function is a/an <u>an</u><u> </u><u>organ</u><u> </u>
<u>cellular </u><u>defferentiation</u><u> </u>describes the degree of specialization that a cell is able to undergo.
A/An <u>embroynic</u><u> </u>stem cell can differentiate into all cell types found within an embryo.
In <u>cytoplasm</u> organisms, all cellular activities take place within a single cell.
Answer:
One Idea was the appreciation that the age of the Earth was much greater than had hitherto for been imagined.
Answer:
The last one
Explanation:
They are both found in the middle and everything else is false
Answer: Hydrogen
Explanation:
Because it is the element that everything is created with it is everywhere. All life has hydrogen in it, our air, SPACE, everything.