One purpose of the Environmental Protection Agency (EPA) is to regulate hazardous wastes. There are many types of wastes that can be dangerous to the environment. They include waste produced by hospitals, dry cleaners, auto repair shops, and exterminators. The EPA makes rules to ensure that these wastes are disposed of property. if wastes from community businesses are not disposed of in the right way, they can end up- A entering the atmosphere and causing acid rain that will käl forests around the country.

B. contaminating the sol and causing runoff to flow into bodies of water that supply humans with food

C. causing serious pollution

D. causing landfills to overflow.

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

When water freezes, it . contracts expands

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.