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Leto [7]
3 years ago
6

I need help to fill in the blank Science hw​

Biology
1 answer:
Neporo4naja [7]3 years ago
4 0

Answer: displacement

Irregularly shaped

Cubic centimeters

Density

Explanation:

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The operon model of the regulation of gene expression in bacteria was proposed by _____.
AlladinOne [14]

Answer: D. Jacob and Monod

Explanation:

An operon is a region of DNA that consists of a single gene regulated by more than one promoter. An operon is a region of RNA that consists of the coding regions of more than one gene. RNA polymerase is the enzyme that binds to promoters and transcribes the coding regions of genes into RNA.

Jacques Monod was the first to demonstrate the preference for certain substrates over others through his studies of E. coli’s growth when cultured in the presence of two different substrates simultaneously.

6 0
2 years ago
What can you do to play an active role in cancer prevention?
melisa1 [442]

Answer: Although humans cannot prevent all cancers, a healthy diet and weight followed by adequate exercise, sleep, and stress reduction all play a part in cancer reduction.

Cancer occurs when cells multiply uncontrollably and are not "cleaned up" by the body. We are dependent on our bodies recognizing and destroying old cells and foreign substances like toxins. When our body's fail to do this, either through stress, poor diet or being sedentary, cancer could result.

Hope this helps.

6 0
3 years ago
What is the value of a transitional fossil?
antoniya [11.8K]
Traditional forms shows the evolutionary steps between species
8 0
3 years ago
If the stomata remain closed due to water loss, what happens to the concentration of CO2 and O2 in the leaf
Temka [501]

Answer:

Fixation of oxygen occur instead of carbondioxide.

Explanation:

If the stomata remain closed due to water loss, the concentration of carbondioxide decreases and oxygen increases in the leaf because of the fixation of oxygen instead of carbondioxide by rubisco. The plant takes carbondioxide from the atmosphere when the stomata is open so when the stomata is closed there is no other way for getting carbondioxide into the leave so the oxygen is now being fixed by our rubisco enzyme to that five-carbon compound instead of carbon dioxide.

7 0
2 years ago
What property of water allows oceans to keep Earth's surface warm and insulated during
Scrat [10]

Answer:

This is the specific heat capacity

Explanation:

The specific  heat capacity of water is the quantity of heat energy needed to raise the temperature of 1 g of water by 1 degree.it is due to the  aggregation of hydrogen bonding  holding water molecules together.

Therefore,large quantity of heat energy is needed to be supplied to raise the temperature of water.

This is an advantage for earth temperature because  a significant rise in the earth temperature,would not  affect the earth because the ocean would have absorbed the heat.Therefore regulating the earth temperature within the narrow limits

However,during summer  little heat is released by the ocean and this cools the earth,this is because the specific heat capacity of the ocean is higher than that of the land,thus as the ocean warms up slowly its warms the earth.

5 0
3 years ago
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