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inessss [21]
3 years ago
7

Name the plantation dance that started out as an improvisation of stomping and shuffling steps and developed into fancy sliding

jumps and hops incorporating bird like movements.
Biology
1 answer:
DanielleElmas [232]3 years ago
3 0

Answer:I am going through the process

Explanation:

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NEED THEM ASAP
pychu [463]

Answer: 1. Dwarf Star 2. Helium to Carbon 3. Xray

Explanation: I just took the test. Trust me!!!

6 0
3 years ago
Daryl learns that millions of years ago, Earth's climate went through a
Mashcka [7]

Answer:

Plants that adapted to the cooler conditions would survive and rapidly evolve into a  new species.

Explanation:

<em>The plants will react by evolving through natural selection.</em>

The plant species that do not have the genes to adapt to the rapid change in climate would become extinct while those with adaptive genes will survive, reproduce, and contribute rapidly to the development of future generations.

In other words, natural selection selects for individuals with adaptive genes and ensures that such individuals reproduce more and give rise to future generations with the adaptive gene while individuals that are poorly adapted to the change in climate gradually fade off the population.

Hence, <u>the plants that adapted to the cooler conditions would survive and rapidly evolve into new species</u>.

8 0
3 years ago
The chemical mechanisms used to avoid errors in protein synthesis are different from those used during DNA replication. DNA poly
Savatey [412]

Answer:

(C) Aminoacyl-tRNA synthetases have an additional active site that binds to non-cognate tRNAs. The tRNAs that bind to this second active are hydrolyzed and released from the enzyme.

Explanation:

In case of translation, proof reading is done by aminoacyl-tRNA synthetases only. Aminoacyl-tRNA synthetases have two mechanisms to avoid error during translation which are mentioned as under:

<u>(1) Chemical proof reading:</u> Incorrect amino acids rather than being hydrolyzed in catalytic pocket get hydrolyzed in editing pocket and thus they hardly get attached to tRNA.  

For example: For distinguishing similar amino acids like isoleucine and valine, isoleucyl-tRNA synthetase uses a second active site which is meant for only valine not for isoleucine. In this particular site, valine which had entered the enzyme is cleaved away with the help of editing reaction after which the enzyme is well prepared to process isoleucine which is the correct amino acid for this enzyme.

<u>(2) Kinetic proof reading: </u>Even if an incorrect amino acid has entered a particular aminoacyl-tRNA synthetase, it does not cause appropriate conformational change in the enzyme because of which the incorrect amino acid loosens from the enzyme and does not get incorporated.

Note: In this example, only chemical proof reading is mentioned not kinetic proof reading.

5 0
3 years ago
What is a carbohydrate? List three facts about glucose. Assume that you are trying to identify an unknown organic molecule. It c
Svetllana [295]

Answer:

This is a question with multiple parts in it, so here goes the answers and the short explanations, because it is a long one.

1. What is a carbohydrate: Carbohydrates are organic compounds, that can be found as sugar or starch and that are high providers of energy for living organisms. Their chemical composition is basically a combination of carbon, hydrogen and oxygen atoms, in different configurations, depending on the complexity of the compoung and the molecules that form it.

2. List three facts about glucose: a) Glucose is the most basic molecular unit in carbohydrates and it is the preferred energy provider for certain organs in the human body, like the brain. b) Glucose is also a product of photosynthetic pathways in plants, as glucose also is the preferred energy provider. c) Glucose is a simple monosaccharide and is commonly known as a simple sugar.

3. Assume that you are trying to identify an unknown organic molecule. It contains only carbon, hydrogen, and oxygen... What type of organic compound is it? Why?: Basically we would be talking about a carbohydrate here and the reason is because of the chemical composition given to us by the question itself. A basic composition of carbon, hydrogen and oxygen, with nothing else added, is the very chemical definition of carbohydrate compounds.

4. Compare and contrast the structures and functions of simple sugars and complex carbohydrates. The essential units of carbohydrates (starch and sugar) are monosaccharides, meaning, their carbon, hydrogen and oxygen structure is a pretty simple one. These monosaccharides like glucose, or fructose, are the most basic energetic molecules and are the ones used for energy production by cells. All other types of sugars will first be broken down into monosaccharides to be used as fuel by cells. Disaccharides are a combination of monosaccharides and their advantage is that their breakdown produces even more energy than monosaccharides. Also, more monosaccharide numbers can be taken out of the consumption of foods made up of disaccharides. Polysaccharides, or complex carbohydrates are a combination of mono and disaccharides, as well as other components, and we usually know them as the carbohydrates. These will yield most of the energetic material needed by cells to work in the absence of other fuels  and when in excess, parts of their molecules will be stored by the body as glycogen and also as fat.

7 0
3 years ago
Read 2 more answers
How long does it take for weathering to shape earths surface
Alexus [3.1K]

Answer:

The effects of weathering disintegrate and alter mineral and rocks near or at the earth's surface. This shapes the earth's surface through such processes as wind and rain erosion or cracks caused by freezing and thawing. Each process has a distinct effect on rocks and minerals.

6 0
2 years ago
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