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tekilochka [14]
3 years ago
15

Living cells cannot use heat to provide the activation energy for biochemical reactions because ________. Which choice(s) comple

te the sentence correctly?
Biology
1 answer:
postnew [5]3 years ago
7 0

Considering the following;

I. Heat is not readily available to all living cells.

II. Heat at excessive amounts denatures proteins.

III. Heat does not provide the activation energy for their reactions.

IV. When a critical temperature is reached, proteins no longer function

Answer;

I and IV

Explanation;

Living cells cannot use heat to provide the activation energy for biochemical reactions because heat is not readily available to all living cells and also when a critical temperature is reached, proteins no longer function.

Too much heat can kill an organism by rendering its organelles, cells, tissues and organs permanently inoperable and un-salvageable. The same process can be observed in tissues at low temperatures, and is the cause of frostbite. This is because enzymes are denatured by high temperature and inactivated by low.

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"Bt maize"
Maurinko [17]

The correct is option (C) includes bacterial genes that produce a toxin that reduces damage from insect pests.

Due to advancements in plant biology, some plant species can now incorporate unique traits that are typically not found in their species. New and improved plant strains can be created using plant biotechnology. This technology is heavily utilized to advance agriculture.

A particular crystalline insecticidal protein is created by combining a specific gene sequence from the bacteria Bacillus thuringiensis with plants. Bt plant is a common name for these transgenic plants. One such transgenic plant that protects transgenic maize from damaging insects and pests is bt maize.

Learn more about maize here:-

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3 0
1 year ago
The buoyant force in Newtons at a point on the sphere is?
Sergeeva-Olga [200]

Answer:

I calculate the buoyancy force as: Volume of the sphere = Volume of the water displaced (Vdisplaced) = (4/3)πr3. Weight of the displaced water = Buoyancy force (B) = Vdisplaced× density of water.

I hope this is what you needed

7 0
2 years ago
Why do living things go to great lengths to increase<br> their chances of reproduction?
IgorLugansk [536]

Answer:

Living things use structural strategies and behavioral strategies that increase their chances of reproduction.

Living things do so to reach the reproduction goal that is to pass genes on to offspring. For example: the pouch of a kangaroo, a frog croaking a mating call,  and colorful petals of flower etcetera helps in increasing mating chances so that their genes can be followed to the generation.

7 0
2 years ago
What type of variation is necessary for natural selection to occur
Lina20 [59]

Answer: genetic variation

8 0
3 years ago
Look at the graph below. Which of the following stars is most likely to be red? (5 points) a Star A b Star B c Star C d Star D
Jet001 [13]

<em>Answer:</em>

????

<em>Explanation:</em>

Hey! I hope you had a great day so far :)

But uh...

I cannot answer that question for you.

There are no "stars" and definitely no graph on a file attached.

Sorry!

<em>Helper's Message:</em>

Hey, I hope you can give me a Brainliest :)

<em>-ChocoChocoCho</em>

7 0
2 years ago
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