1. According to our discussion in dass, which of the following is the BEST description of
a eukaryotic cell?
A a cell that contains many ribosomes to increase its surface area.
B a cell that contains chloroplasts and a nucleus.
ca cell without internal membranes but which DOES contain ribosomes.
D. a cell with extensive intemal membranes to increase its surface area.
E a cell that will burst if placed in a hypotonic environment.

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

How is the carbon cycle related to global warming ?

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3