Explanation:
New ocean crust is formed at the mid ocean ridges. The new crust is then pushed away from the ridge as newer crust comes to the surface. The ocean crust then spreads out enlarging the ocean. The farer away from the ridge the ocean crust is the older the crust
Scientists think that dolphins and whales may have evolved from a common ancestor because they have similar anatomies.
<h3>What is a common ancestor?</h3>
A common means different animals now, have evolved from a single ancestor or animal.
These animals may share common characters and structures.
Whales, dolphins, and porpoises are evolved from a common ancestor; cetacean.
The animals that evolved from cetaceans are all aquatic, primitive cetaceans were amphibians too.
Thus, They have similar anatomies.
Learn more about ancestors
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Answer:
X is horizantal and Y is vertical
Explanation:
Answer:
C.
Explanation:
Starch are macromolecules that are made of monomers that are simple sugars. Cells are microscopic and they can only absorb small substances. Therefore starch needs to be digested in other words broken down into simpler substances that can be taken in by cells. Therefore before starch can enter a cell it must be 3) digested to form simple sugars
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