The respiratory system takes oxygen from the air and sends it from the alveoli to the circulatory system. The circulatory system carries the oxygen and glucose to your cells for energy. And lastly, the digestive system to carry the nutrients and remove the waste.
When you think about the main purpose of mitochondira (to produce energy; an easy idea how to remember the function of mitochondria in our bodies is to imagine them as energy factories or power plants) it becomes easy to understand why.
Animals (including us) move a lot more compared to plants. For movement you need energy and energy needs to be produced in our bodies in order for us to be able to move. Therefore, we have mitochondria that are bigger. Not only that, animal cells usually also have more mitochondria. All of this is probably done to keep up with the increased energy demands that moving organisms have.
The answer is A.
Engels edited Karl Marx's Das kapital. Engels did not edit Das kapital he just funded Marx financially from him to do it on his own. Then it was after that period Marx died and Engels edited the second and third volume.
Engels met with Marxist theory and Karl Marx in the year 1845 and they published the condition of the working class.
Engel coauthored with Marx in the communist manifesto.
Answer: B) Are found in all the vascular plant groups
Explanation:
Megaphylls are found in vascular plant and they are leaf structures. They undergo photosynthesis and are gotten from the euphyllophyte structures. The have many large veins that branches apart.
microphylls and megaphylls are leaf structures that have diverse anatomical structures.
