Answer:
The nucleus, cell membrane and cytoplasm.
Explanation:
The nucleus, cell membrane and cytoplasm are three elements that cannot be absent in a cell because they are necessary for the survival of the cell. The nucleus controls and regulates the activities happening inside the cell e.g. growth and metabolism etc. Cell membrane acts as a wall to protect the inner part of the cell from the external environment as well as allows nutrients and gases inside and outside the cell. Cytoplasm serves as a medium for the conduction of nutrients and waste from on place to another and also for the medium for organelles in which they floats.
Damage to your kidneys can cause wastes to build up in your body and lead to other health problems like heart disease , anemia,and bone disease. Also you can die without your kidneys
Answer:
1.) True
Explanation:
A scientific theory can become a scientific law, but a scientific law cannot become a scientific theory.
A scientific theory is what is made to scientific law after many trials to prove the scientific theory is true. But after they changed a scientific theory to scientific law, it can't be changed back because it has been disproved many years later.
Hope it helps.