What factors play into making the mapping of the earth's ocean floor more difficult?

Our middle aged sun is approximately how old

Why was the sheep domesticated?

What mutualism is important for ecosystem dynamics in the arid southwest? why is this mutualism important? what is causing destruction of this mutualism?

Which process does the plant need energy to perform? A. Release of oxygen into the atmosphere B. Transpiration of water C. Absorbing water into the root hairs D. Pulling nutrients into the root hairs

cold front is associated with which of these? A. a rising cold air mass B. air masses that are not moving C. a cold air mass moving into new areas D. air masses that have trapped warmer air between them

What happens if you connect a battery to a small light bulb with a single wire.?

John and emily were experimenting with the effects of road salt on plant growth. to do this, they watered plants daily with the same amount of salt water. they could best improve their experiment by -

Three different core areas designed to protect an endangered beetle each have a buffer zone associated with them. in buffer zone a, the birth rate of the beetle is 0.04, and its death rate is 0.08. in buffer zone b, the birth rate of the beetle is 0.

In a, are (Y) and are (y). A=4 B=1 C=2 D=3

wall of the gut tube has layer of smooth muscle that run both circulary and longitudinally contraction of these muscles produces