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Zina [86]
3 years ago
8

Which of these is an example of a chemical change?

Biology
2 answers:
lana66690 [7]3 years ago
4 0

Answer:

burning gasoline is correct

V125BC [204]3 years ago
4 0

Answer:

Burning Gasoline

Explanation:

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On your own notebook paper write a four sentence summary of the most important ideas on each section.
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Explanation:

On your own notebook paper write a four sentence summary of the most important ideas on each section

what is Environmental science

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Water stores heat much longer than other substances do allowing organisms to
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Because water is so good at storing heat energy, it is harder for organisms to experience a change in body temperature in harsher climates.
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I do not understand these.
Oliga [24]
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8 0
3 years ago
What is the relationship between Microvilli of gut, epithelium, glucose, circulatory system, capillary fenestrations, glucose/AT
IgorLugansk [536]

All of these are the components of the catabolic pathway or using the nutrients to provide energy from it. The breakdown of food molecules begins in the mouth and continues to the small intestine. The nutrients are absorbed through the wall of the small intestine which. The surface of the intestine wall is specially modified (contains a huge number of hair-like structures-microvilli) which increase nutrient absorption. (more area for nutrients to be absorbed).  The digestive tract is lined with mucosa which consists of simple columnar epithelial cells. Monomer subunits of the food, like glucose are than absorbed and diffused down a concentration gradient into capillary blood. Glucose is converted into pyruvate molecules through the process of glycolysis. Catabolism ends in the major energy-converting organelle, the mitochondrion, where the ATP is produced.


8 0
3 years ago
A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
iren [92.7K]

Answer:

Increase in transcription

Explanation:

Transcription is the process of forming RNA from DNA. It can be controlled by many factors like a repressor. Repressor can bind to the operator region of the promoter and hinder the movement of RNA Polymerase enzyme, halting the process.

Here, it is given that the repressor needs to first bind to an effector molecule X. Once it binds to X, it is activated and then it can bind to operator of gene A to inhibit its transcription. If the X binding domain on repressor is mutated it wont be able to bind to X. Thus it wont get activated and wont be able to attach to operator region to inhibit transcription. Hence, transcription process will keep going on uncontrolled.

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3 years ago
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