Leptin is a hormone that tends to reduce food intake. it is produced by what kind of cells?

Astructure that is found in a plant cell and not in an animal cell is a ? central vacuole mitochondrion nucleus ribosome

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation