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so its cells in the lower layer begin to divide quickly and move into the break. new cells begin to fill the area as cells continue to divide and cells stop to their rapid dividing once the break is filled.

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12y ago

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How do analogies help you to understand the scientific problem?

Analogies allow the comparison of simple, familiar things to explain new or more complex idea. For example, think of how water runs through a pipe, branching off in different directions to a kichen sink, a washing machine, and to a garden hose. Is it not similar to sap flowing up a stem from a root, along a branch, and into a leaf? Analogies can provide a mental picture, based on familar things, of unfamiliar ideas.


What has the atomic number of 86?

Isotopes are not designated by atomic number. The element with atomic number 88 is Radium. Because different isotopes of the same element vary by the number of neutrons in the nucleus, the isotope is designated by the atomic mass. For example, most carbon atoms have six protons, so the atomic number is 6. The most common isotope has 6 neutrons, so the isotope (Carbon 12) is the same as the atomic mass, 12 (6P + 6N), but there are isotopes with atomic masses of 13 (6P + 7N) and 14 (6P + 8N). Carbon 14 is familar as a dating tool when organic compounds are present. The only isotope given for Radium in the periodic table is 266.


All the animals during Permian Period?

The Permian Period,248 million years ago, was the largest extinction period on Earth. Ninety to ninety-five percent of marine species were eliminated, including fusulinid foraminifera, trilobites, rugose and tabulate corals, blastoids, acanthodians, placoderms, and pelycosaurs. Numbers of sharks and bony fish were drastically reduced during this period.


Which is an example of a genetic drift?

allele frequencies change randomly each generation ~*Apexx*~


What word is the opposite of ecosystem?

Oh, dude, the opposite of ecosystem would be something like... um, I don't know, how about "ecodisaster"? Like, it's not a real word, but it totally sounds like the opposite of a balanced, harmonious environment, right? So yeah, let's go with that for now.