What is the role of gills?
a. to pump blood
b. to bring oxygen into the animal
c. to break up food
d. to be a body cavity

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell