Which statement accurately describes the relationship between the brain and addiction?A. Normal activities produce heightened responses once receptors are reduced. B. A higher amount of addictive chemicals are needed to get the same high when fewer receptors are present. C. The brain reacts to excessive dopamine levels by increasing the number of dopamine receptors. D. All drugs act on dopamine synapses in the same way.

Answers

Answer 1

Answer: C. The brain reacts to excessive dopamine levels by increasing the number of dopamine receptors.

The statement accurately describes the relationship between the brain and addiction. There is a significant link between neurotransmitters and its influence on the activity and the emotion that we feel towards that set of activity. When there is an abnormal or disoriented amount of neuro-chemicals then it would cause some dysfunctional responses on the activity.

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I need a little help with these biology questions:1. which of the following brought about an increase in human populations by increasing the amount of food and medicine available and decreasing the death rate:
a. industrial revolution
b. world war ii
c. the internet
d. invention of the car

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c. regulation of climate
d. provision of fresh water

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Answers

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2. B (guess)
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Mutuation is an evolutionary mechanism

Answers

Mutations indeed are evolutionary mechanisms because through mutations we can experience the different adaptations which might enable us to become more adapted to our nearby environment - however, it's also not necessarily true that these mutations make us more adapted to our environment.

Mutation is an evolutionary mechanism - true.
Mutations sometimes help us adapt to the environment.

During glycolysis, the steps between glucose and formation of the triose phosphates collectively a. consume two ATP and two NADH molecules b. produce two ATP and two NAD+ molecules c. consume two ATP molecules d. produce two ADP and two NADH molecules e. consume two NAD+ molecules

Answers

Answer:

The correct answer is c. consume two ATP molecule

Explanation:

Glycolysis is the process in which glucose is partially breakdown into two pyruvate molecules. Glycolysis is divided into two-phase the first phase is the preparatory phase and the second phase is the payoff phase.

In preparatory phase energy is consumed and the formation of two molecules of glyceraldehyde 3 phosphate(triose phosphate) takes place with the consumption of two ATP, therefore, this phase is called energy investment phase.

These two ATP are consumed when fructose 6 phosphate converts into fructose 1,6 bis-phosphate. Therefore, the right answer is c.

Whats the difference between purine and pyrimidine?

Answers

the purines have two rings in their structure while the pyrimidines have hust one

State one role of white blood cells at the site of a wound during the healing of the wound.

Answers

I stated three answers.
1. White blood cells inundates bacteria that might entered the wound.
2. White blood cells produce antibodies that attack pathogens that might entered the cut(s).
3. They fight infection.(For Sure)

Hope this helped :D

WBC's fight bacteria by actually engulfing around them and digest them

Bryophytes are known as nonvascular plants. what makes them nonvascular?

Answers

The answer is that bryophytes do not have a xylem and a phloem. Bryophytes do not have the vascular transport system that is found in angiosperms and gymnosperms. They get food and distribute nutrients by diffusion from cell to cell.

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