All the cells don't have all of the intracellular structures because each and every cell do not need each and every intracellular structure. The plant cells have chloroplasts because they need to convert the light energy into chemical energy via the process of photosynthesis, the animal cells, however, have no such need, therefore, the animal cells do not have chloroplasts. Also, the erythrocytes do not have the cellular organelles in them which are present in the other body cells, because there is no need for the cellular organelles in them. The large vacuoles in plant cells is also a great example. The plants need the vacuoles for the metabolic processes, while most animal cells have no need for them.
B. The amount of waste would build up and the toxins produced would harm the animals and humans
Answer:
Where are the examples??????
Explanation:
Answer - Jet Stream.
Reasoning - Jet Stream are pretty much fast flowing and is followed by the hot or cold air within the boundaries which helps the (flow) of shifts.
Ty for waiting :) I was trying to back up my Answer. Thank you for being part of this community and allowing me to answer - Johny
I think it's C. less than a year