Filtration
<span>Urea is the cellular waste product that the kidneys remove from the blood.Kidneys are the two bean shaped organs that has several functions to keep the body healthy. It not only removes urea from the blood, but also helps in the formation of urine and maintaining the fluid level of the body. The two kidneys are placed on the two sides of the spinal cord. The blood enters the kidney through the renal artery. The nephron within the kidneys mainly take out the waste products and the excess water from the blood and purifies it.If the kidneys of a person fail to work properly then it becomes important to perform dialysis for taking out the waste materials from the blood.</span>
B no because the pores that are not well connected have low permeability
The answer is b just answerd this question in class<span />
B. carbon cycle
Carbon cycle is related because of the CO2 gases that creates extreme thermal conditions within the earth's temperature although there are other gases related too.
<span>The carbon cycle is important to all ecosystems as well as the food chain.</span><span>A benefit of the carbon cycle is that it is critical to the food chain. </span><span>Carbon is an important element in living tissues and in all organic matter. All living things are made of carbon.</span>
A synonym for living is biotic.
Glucose is formed during photosynthesis and this food for the cell.
40x lenses is used only with high-power objective in light microscopes. After that you end up going into oil immersion lenses.
