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Softa [21]
2 years ago
15

The Earth’s crust is divided into large sections like puzzle pieces called plates. The plates move due to uneven heating in the

mantle which causes the molten rock to circulate. This circulation is called ____________ __________________.
Biology
2 answers:
Brut [27]2 years ago
3 0

Answer:

This movement is called plate motion, or tectonic shift

Explanation:

kenny6666 [7]2 years ago
3 0

Answer:

The person obove is right

Explanation:

got 100 on 6.01 Quiz: Plate Tectonics TGA REQ

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Which hypothesis helps to explain why all organisms share the same genetic code?
KonstantinChe [14]

Answer:

There are two possible answers: Deep-sea vents provided the energy needed for the first organic compounds to form OR self-replicating RNA molecules passed on genetic information.

Explanation:

The reason for the first answer is due to the hypothesis that indicates that life (organic molecules) arose from inorganic molecules synthesized from the amino acids in those energy vents. This is called the metabolism first hypothesis. The Miller-Urey Experiment provided evidence that organisms could rise from inorganic molecules (they simulated under the conditions you would see on early Earth). The second hypothesis is the RNA World hypothesis (second answer) which suggests that the formation of RNA that could replicate (possible due to mutation or evolution), led to life that could preserve its genetic integrity through replication (greater stability to the organism) and create lipid bi-layer membranes/other organelles. Some scientists support the Metabolism First Hypothesis, while others are skeptical (this goes for the RNA World Hypothesis as well). However, the RNA World Hypothesis is for more reasonable in the fact that its main point is the fact that RNA molecules were able to replicate and maintain genetic stability despite early Earth conditions. Although either hypothesis could explain why all organisms share the same genetic code, the RNA World Hypothesis better explains the universality of DNA/RNA of genes that we see today.

5 0
2 years ago
Read 2 more answers
If a blood cell is placed into a solution of 10M salt (highly salty) what would you expect to occur?
steposvetlana [31]
The blood cell will lose water and will undergo lysis.

Cell membrane is permeable to water and can get/lose water via osmosis. Osmosis is induced by the gradient of concentration of the solution. In this case, the 10M salt solution has a very high oncotic pressure that it will attract nearby water. That means the water inside the cells will be taken into the solution and cell will continue to shrink and then die.
6 0
3 years ago
Organiza los siguientes conceptos en orden cronológico: 1) Fotosíntesis 2) Respiración aeróbica 3) Primeros organismos eucariont
Crank
<h2>respiracion aerobic</h2><h2>fotosintesis</h2>

organismo Eucaronte

<h2>pluricelular</h2><h2>reproduciion  </h2><h2 /><h2 />

8 0
2 years ago
Name the five cardiac cycle activities starting with excitation and ending with regulation of blood flow and volume.
stira [4]

Answer:

Explanation:

1) Excitation brings about contraction.

2) Contraction leads to an increase in blood pressure.

3) Changes in blood pressure results in the opening and closing of the heart valves.

4) The opening and closing of heart valves then regulates the flow of blood and it's volume.

3 0
3 years ago
After the milk and bacteria ferment, what are the two parts that we separate?
Korolek [52]

Answer:

Latic acid and rennet cause the milk to curdle,which SEPARATES the curds.

4 0
3 years ago
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