Answer: Negative feedback serves to reduce an excessive response and to keep a variable within the normal range. Negative feedback loops control body temperature and the blood glucose level.
A cell membrane is a bilayer made up of phospholipids. The hydrophobic tails of the lipids make up the inside layer of the membrane while the hydrophilic heads touch the fluid both outside and inside of the cell
Answer:
In areas that have cold winters, some common bird foods, such as nectar and insects, may not be available year-round. Birds that eat those foods must fly south to find food to survive. Other birds that eat seeds or bugs that live under tree bark often hang around, since they can continue to find food all winter long.
Voice box is what is commonly called
