Answer:
b is the correct answer for your question
Use enzymes and bile to break down food and extract it's nutrients
The crust of the Earth can be thick in some spots and thin in others.
The force required to push the haughty elephant is 3000 N.
<h3>Force</h3>
The term force refers to the product of mass and acceleration. Force is a vector quantity. Mass is a scalar quantity while acceleration is a vector quantity.
- acceleration (a) = 10 m/s 2
Hence, the force that is required to push a naughty elephant that squirts water that is 300 kg to accelerate 10 m/s 2 is F = 300 kg × 10 m/s 2 = 3000 N
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What we know about shark and ray fossils comes from bones in rocks from the Cretaceous period in Mexico that left behind, their only hard parts.
<h3>Shark fossils</h3>
The idea of a stingray-like shark may seem like something out of a B-movie. But paleontologists have just reported the discovery of such a creature in Cretaceous rocks in Mexico. This strange shark combines a streamlined body with large, wing-shaped fins, an ancient animal unlike any seen in the fossil record.
<h3>Whose are the fossils?</h3>
Fossils are the remains or traces of living beings that inhabited the Earth in previous geological periods. Fossil remains are parts of animals or plants, such as a bone or some limb or organic remains that have been preserved in some way.
With this information, we can conclude that Fossils are remains or traces of animals and plants preserved in rocks.
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