All three of the phosphate groups have a negative charge and since they are all connected to each other by a carbon chain, they have more energy because they repel each other. When you take away one phosphate group, energy is released because the negative charge between those two is released.
Answer:
2. plant cell has more defined shape than the shape of an animal cell, because the plant cell has a cell wall that gives it a rigid shape
The correct answer is (a.) hunting. Hunting is a human activity in which it does not contribute to any wetland destruction. However, runoffs, draining water, and building landfills and roads are the ones who uses water and wetlands.
Answer:
Most water systems test for lead as a regular part of
water monitoring. These tests give a system-wide
picture, but do not refl ect conditions at a specifi c
household faucet.
If you want to know if your home’s drinking water
contains unsafe levels of lead, have your water tested.
Testing is the only way to confi rm if lead is present or
absent.
Some faucet and pitcher fi lters can remove lead from
drinking water. If you use a fi lter to remove lead, be
sure you get one that is certifi ed to remove lead by NSF
International.
