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Ugo [173]
3 years ago
12

Which one below is not a strand of RNA

Biology
1 answer:
Naddik [55]3 years ago
4 0
Its be A goes T T goes A G goes to C C goes to G etc...
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what is a mass extinction? what is a mass extinction? an event that causes the extinction of a large fraction of earth's species
sineoko [7]

A mass extinction event occurs when a species disappears far more quickly than it is replaced. This is typically understood as the loss of around 75% of all species over a "short" period of geological time, or fewer than 2.8 million years.

An enormous number of species were wiped out by a harsh, worldwide, swift, and selective event is mass extinction. According to marine fossils, at least 75% of all species are thought to have become extinct. The most recent mass extinction is the Cretaceous-Paleogene extinction event, which is also the only one that can be proven to have been caused by a significant asteroid impact. All non-avian dinosaur species, making up about 76 percent of all species on the earth, perished during mass extinction. The Chicxulub asteroid impact in what is now Mexico, which occurred 66 million years ago, caused an ecosystem collapse that resulted in the extinction of the dinosaurs and >75% of all land and sea species as well as the macroevolution of mammals.

Learn more about mass extinction

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8 0
1 year ago
B<br> WA<br> Youngest<br> Oldest
DedPeter [7]

Answer:

what is the question

Explanation:

4 0
3 years ago
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A gene is a segment of mrna
Viefleur [7K]

Answer:

An RNA single-stranded molecule that is complementary to one of a gene's DNA strands, to be precise.

Explanation:

DNA sequences or segments code for proteins or molecules with defined functions, called genes.

7 0
3 years ago
Explain how a dead organism may become a fossil.
MrMuchimi
When the organism dies in a moist or wet area the organism gets covered in mud and the mud hardens like a rock. 
6 0
3 years ago
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How are variations in adaptation similar? how are they different?
AVprozaik [17]
Common mistakes and misconceptions
Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations. Random mutations are the initial cause of new heritable traits.
3 0
3 years ago
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