Answer:
B. Protect us from harmful ultraviolet Radiation.
Explanation:
I did this in 6th grade. The ozone layer contains a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.
Answer:
When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it Answer:active transport
The answer is red blood cells
Answer:
Amphibians
Explanation:
They had just shown up during the Carboniferous period and were still living in the water.
<span>Rex imitates a dog. The lead soldier controls the robot by using simple commands like “stop”, “fetch” and “heel”. It is designed to help the soldiers on operations and missions where it accompanies the lead soldiers from a distance, using the developed technology and patented by IAI. </span>