A: In a food web, the population of producers affects the population of consumers.
If there's less vegetation, the producers, there's less for deer to eat so the population decreases, and consequently because there are less deer for the wolves to eat, the wolf population decreases as well.
The cell has to use active transport when it's trying to transport material against the concentration gradient. (from low to high concentration) Or, if a molecule is too big to diffuse through the cell membrane, it must be moved through using a carrier protein.
Hope that helped you.
Answer:
Self fertilization is pretty self explanatory. If you're talking about plants then it is the ability to fertilize/reproduce on its own. But for cross fertilization (for a plant), requires a support from another plant (cross pollination), in order to be fertile/reproduce
Answer:
1. As the cell size increases, the ratio of surface area to volume DECREASES
2. It depends on the unit of the ratio 6:1. If it is in cm−1, then it means that it is similar to a cell of size 1 cm^3, which is normally too big to get materials from the surface
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3. A Small cell has a large surface area/volume ratio and therefore can exchange molecules with it's external environment rapidly. So, Here cell with ratio 6:1 is smaller and have ability to better transportation across it's membrane as compared to other cell with ratio 3:1
HOPE THIS HELPS!!!
Answer:
The answer is described below
Explanation:
Hepatitis C infection results from exposure to blood and other organic fluids infected with the hepatitis C virus. After infection, <u>acute hepatitis</u> occurs. Some of the patients present jaundice (yellowing of skin and eyes) although many do not and may not notice they're infected. Spontaneous resolution may occur in less than half of the patiens in this stage within six months after infection. Those who do not, progress on to develop chronic hepatitis. About one third or less of these patients will progress to cirrhosis that takes about 25 to 30 years to develop. Chronic hepatitis may also cause liver cancer and other diseases and may be diagnosed by the presence of HCV RNA after six months of infection.
