Answer:
A. The continents were pushed apart when new crust formed in the center of the ocean and pushed older crust away from the volcanic ridges.
Explanation:
The crust is divided into many plates that move over the mantle. Nowadays, there are six different bigger plates and twelve that are smaller. These plates are limited by three types of ridges or borders that differ in the movement they produce.
Boundaries types:
I. Divergent
II. Convergent
III. Transforming
In divergent boundaries, a new crust is created by the rising molten materials coming from the mantle. Two plates separate, and the stream of hot material creates a new seabed between them. It occurs an expansion of the sea bottom. As old plates get separated, the new and young crust instantaneously gets formed. The emerging mantle occupies the space left by the separation of the two plates. This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge. An example of this is the ridge located in the middle of the Atlantic Ocean, extending from Greenlander to the southernmost point of South America.
Fossils
Knowledge did Darwin’s theory need in order to be tested, which he didn’t have at the time was fossils
- Even though Charles Darwin had access to a sizable collection of fossils that had been discovered up until the 1800s, a great deal more fossils have been discovered following his passing that are crucial pieces of evidence for the Theory of Evolution.
- Many of these "newer" fossils represent human predecessors and confirm Darwin's theory of human evolution by "descent through modification."
- When Darwin first proposed the theory that humans were primates and related to apes, the majority of his evidence was circumstantial; however, many fossils have subsequently been discovered to fill in the gaps of human evolution.
- Even though the theory of human evolution is still very debatable, more and more information keeps coming to light that supports and updates Darwin's initial theories.
- However, until all intermediate fossils of human evolution are discovered or until religion and people's religious beliefs vanish, this aspect of evolution is likely to remain debatable.
- Since things are unlikely to occur, there will always be doubts about how human evolution took place.
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True, three bases form a specific amino acid.
Pancreatic amylase<span> breaks down oligosaccharides further into monosaccharides, the simplest form of carbohydrates (starch). The brush borders produces another enzyme referred to as maltase that breaks down maltose into </span>glucose<span>. Sucrase, lactase and other pancreatic enzymes break down sucrose and lactose.</span>