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Tresset [83]
3 years ago
13

Describe how the release of the neurotransmitter, dopamine, can result in addiction to tobacco products.

Biology
1 answer:
DaniilM [7]3 years ago
3 0
Dopamine is a chemical released by neurons to send signals to other nerve cells. the brain includes several distinct dopamine pathways, one of which plays a major role in reward motivated behavior.
smoking is a habit, in a habit there is the cue, routine, and reward. with smoking the cue can be different things, most commonly stress or anxiety. the routine how you react to those cues, the reward is the chemical 'triggers' that are pulled inside you're brain leaving you feeling calm, happy, or relieved, etc.
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Anyone know this please help if you do
Bad White [126]

Answer:

the antibiotics may stunt the growth of the piglets

Explanation:

3 0
3 years ago
If the frequency of a dominant allele in a population in equilibrium is 0.35, then the frequency of the corresponding recessive
Nadusha1986 [10]

Answer:0.8775

Explanation:formula for gene frequency is p+q=1

where p is the dominant allele and q is the recess allele.

Given than p=0.35

P^2=0.35^2=0.1225

q=1-p

q=1-0.1225=0.8775

Answer is 0.8775

3 0
3 years ago
Secondary succession could occur after a _______.
pychu [463]

Answer:

disturbance has destroyed population in a community

Explanation:

The secondary succession occurs after there has been some disturbance that has manged to badly damage or destroy the populations in a community. This basically means that after some catastrophic event that happened to a certain population or populations, other species moved in to colonize the freed space. There are countless examples of secondary succession in nature, and one of the best is when there is a strong volcanic eruption. The volcano manages to destroy the population of plants and animals in its close surroundings, but after the eruption ends, the space starts to be colonized by new plants and animals step by step until they create a new well functioning community.

5 0
3 years ago
Read 2 more answers
In contrast to growing microtubules, shrinking microtubules ............. Group of answer choices have strong lateral interactio
Otrada [13]

Answer:

have curved protofilaments at their plus ends

Explanation:

Microtubules are polymers of tubulin proteins that function as the cytoskeleton of eukaryotic cells. Microtubules are dynamic structures that can grow and shrink at a rapid rate. During this process, tubulin subunits can associate and dissociate at the plus end of the protofilament. Tubulin subunits bind to two GTP molecules, one of which is hydrolyzed to GDP after assembly. When microtubules are unstable, protofilaments curl outwards because GDP-bound tubulin has a weak affinity (thereby curving it) and disassemble. The dynamic stability of microtubules is regulated by a feedback loop: when microtubules shrink, free tubulin concentration increases and microtubules start to grow. As microtubules grow, free tubulin concentration decreases and the rate of GTP-tubulin addition also decreases.

4 0
2 years ago
What part of the amniotic egg provides food for the embryo?
aev [14]

it would be C the yolk because


8 0
3 years ago
Read 2 more answers
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