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Serjik [45]
3 years ago
13

Crossing over occurs during Prophase II. A. True B. False

Biology
2 answers:
Lemur [1.5K]3 years ago
8 0
False
crossing over occurs in prophase 1 of meiosis 1. The significance of this crossing over is to ensure cell differentiation. If this occurred in prophase two it means the cells in meiosis 1 will be identical.
gregori [183]3 years ago
5 0

Answer:

B. False

Explanation:

Crossing over not occurs in prophase II. It occurs only during prophase I.

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The conversion of malate to oxaloacetate in the citric acid cycle takes place with the conversion of NAD to NADH. In this reacti
Mariana [72]

Answer:

a) the oxidizing agent.

Explanation:

In the citric acid cycle, malate is dehydrogenated into oxaloacetate and the reaction is catalyzed by malate dehydrogenase. The released electrons are accepted by NAD+. So, NAD+ is reduced into NADH. The substances that accept electrons during chemical reactions and are reduced to oxidize the other substances are called oxidizing agents. NAD+ serves as an oxidizing agent as it accepts electrons to oxidize malate into oxaloacetate.

5 0
2 years ago
List the events of inspiration beginning with stimulation of the phrenic nerves
Andru [333]
The events of inspiration begins with the;
Impulses are conducted on the phrenic nerve to muscle fibers in the diaphragm contracting them.
As the dome shaped diaphragm moves downward the thoracic cavity expands.
At the same time the external intercostal muscles may contract raising the ribs and expanding the thoracic cavity further.
The intra-alveolar pressure decreases 
Atmospheric pressure greater than intra-alveolar pressure forces the air into the respiratory tract through the air passages.
The lungs fill with air.
3 0
3 years ago
Which of the following best describes what happens to water vapors immediately after it is released from plants through transpir
kozerog [31]

A) it will undergo evaporation and change to gas.

5 0
3 years ago
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photoshop1234 [79]

Answer: oil and vinegar salad dressing

Explanation:

4 0
3 years ago
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Being dipole allows water molecules to do some pretty spectacular things. Describe at least one property the occurs because of t
Roman55 [17]

The polarity of water enables it to serve as a solvent for polar substances.

A polar substance is a substance that has a positive end and a negative end. Water itself is a polar substance and this polarity enables it to dissolve polar substances.

For instance, HCl dissolves in water because it is polar. The positive end of the dipole in HCl attaches to the negative end of the dipole in water and the negative end of the dipole in HCl attaches to the positive end of the dipole in water.

This dipole - dipole interaction accounts for the dissolution of HCl in water.

Also, ion - dipole interaction accounts for the dissolution of ionic substances such as NaCl in water.

Learn more: brainly.com/question/10904296

3 0
2 years ago
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