The answer is D
One way to remember this is when you are building a bridge there is one piece right in the middle that keeps the whole thing from collapsing that is called the key-stone. If a keystone species goes extinct then the rest of the ecosystem will crumble around it.
Answer:
Flat
Explanation:
The atlas is one of the two upper cervical vertebrae, also known as C1, which is the topmost vertebra of the spinal column. ... It is the vertebra that is in contact with the occipital bone, a flat bone located at the back portion of the head.
The formation of the Hawaiian Islands.
Explanation:
A modern process that is believed to be similar to the way crusts formed before the advent of plate tectonics about million of years ago is the formation of the Hawaiian Islands.
The Hawaiian Island is a series of volcanic Island which forms as result of volcanic activities on the oceanic plate.
- Hawaiian Islands forms from a hotspot that supplies the ocean floor with sufficient magma as it rides.
- This is similar to the volcanic activities that initially sculpted the surface of the earth.
- During the early history of the earth, our very hot and restless planet poured out lava to the surface through which the crust formed.
learn more:
Sea floor spreading brainly.com/question/9912731
#learnwithBrainly
D is false, enzymes can be reused
Chemical: Chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction to transform other chemical substances.
Nuclear: Nuclear energy comes from splitting atoms in a reactor to heat water into steam, turn a turbine and generate electricity.
Kinetic: Kinetic energy is the energy of motion. An object that has motion - whether it is vertical or horizontal motion - has kinetic energy.
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