Choose all of the following that are considered to be part of the endomembrane system of eukaryotic cells: endoplasmic reticulum vacuoles lysosomes ribosomes Golgi apparatus nuclear envelope plasma membrane various vesicles

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

In which state was more than 100 billion tons of coal mined in 2005?