A child swinging on a swing utilizes which type (or types) of energy?
a. kinetic energy only because the child is in constant motion
b. potential energy only, because the child has to invest energy to get the swing to go
c. chemical energy only, because it is the child's metabolism that powers the muscles that
make the swing move
d. kinetic and potential energy only, but in constantly changing ratios: when changing
direction it is pure potential energy; at the bottom of the arc, it is pure kinetic energy
e. kinetic, potential, and chemical energy. The child powers the swing with chemical energy
in the muscle cells and the swing moves like a pendulum with changing ratios of kinetic
and potential energy.
E
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The Gulf Stream is part of what scientists call the "great conveyor belt" that circulates water throughout the world's oceans. There is cause for concern that the increase in global warming might stop the conveyor belt
Would this scenario change Europe's climate? A) Yes: The Gulf Stream brings cold water from the arctic to Europe. Without this, Europe's climate is expected to be much warmer. B) Yes: The Gulf Stream brings warm water from the tropics to Europe. Without this, Europe's climate is expected to be much cooler. C) No: The climate of Europe is unaffected by ocean currents. D) No: There are other currents that will take over if the Gulf Stream stops functioning.
____________________ reproduction produces clones of the parent.
A. Meiotic B. Mitotic C. Eukaryotic D. Translation E. Gemmule
Describe the major taxonomic divisions of prokaryotic organisms
What will be an ideal response?
Which of the following is not found in protozoan cells?
a. Cell walls b. Nucleus c. Mitochondria d. Cell membrane