Well, it's obvious, because without a transport system, cells wouldn't have the nutrients and things they needed!! And waste wouldn't be able to circulate out of cells.
Wow! this si a huge question but analyzing all the datils from ths option you give me I have to say that C option: <span>Heat energy became trapped in the atmosphere by greenhouse gases and was used as an energy source in the building of macromolecules, is the one that gets closer to what the scientists have said recently. Take into account for example, the examinations of Dr. Stanley Millers. I think this can help you</span>
<span>The answer is a lioness teaching her young how to hunt
An action could be considered as a reproductive strategy is it's being done to ensure the continuation of the next generation.
Teaching the young lion to hunt will definitely improve the young lion capability's to survive and help their survivability</span>
Answer:
400Joules
Explanation:
the total work done to be calculated is Force× Distance
:f×d=W
80×5=320J
The answer is A, 'a mammal' because it goes with the copulative verb 'to be', i. e., 'is'.