Answer:
false ig because animal cell is not complex(i am not sure)
Answer:
I am pretty sure it is A or D sorry if this does not help
Answer:A paper clip can float on water and the size does not matter
Explanation:
Answer:
When you make a fist after extending your arm and then flex your fingers, what statement is true?
A. It is easier to perform as opposed to flexing the wrist and then flexing the fingers
D. Both A and C answers
B. The actin and myosin are not binding
<h2>C. two muscles are crossing the same joint</h2>
<span>Protein channels are needed to transport substances because it accelerates the transport process. Very few substances enter or leave cells without being attached to a transport protein. Different types of substances require different types of proteins to transport them. Protein channels transport water or ions downwards and ATP-powered pumps transport molecules or ions upwards. ATP generates energy to transport the molecules upwards. Gravity is used to transport the water molecules downwards. So, in a nutshell, if substances need to be transported from the top of the body downward, the force of gravity is used to transport the substances down. If substances need to be transported upwards, ATP, a coenzyme, is used to generate energy to transport the substance upwards</span>
