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Svet_ta [14]
3 years ago
5

David's wife wakes him from a peaceful slumber to tell him that she heard a noise. As he slowly gets up to investigate, his hear

t begins to race, his mouth is dry, and he begins to sweat. Clearly, David's _____________ has been activated.
Biology
1 answer:
dusya [7]3 years ago
8 0

Answer: Sympathetic Nervous System.

Explanation:

The sympathetic nervous system is part of the autonomic nervous system. The sympathetic nervous system activates what is often termed the fight or flight response. The sympathetic nervous system directs the body's rapid involuntary response to dangerous or stressful situations. A flash flood of hormones boosts the body's alertness and heart rate, sending extra blood to the muscles. Breathing quickens, delivering fresh oxygen to the brain, and an infusion of glucose is shot into the bloodstream for a quick energy boost. The sympathetic nervous system allows animals to make quick internal adjustments and react without having to think about it.

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Genetics and inheritance are controlled by the laws of _________. Each parent has ________ alleles for each trait. You have a __
amid [387]

Answer:

1. Segregation, one, 50%.

2. Punnett Square, A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes (shows the probability of an offspring with a given genotype resulting from a cross), It does not show actual offspring.

Explanation:

Punnett Square, this gives you the total number of predicted offspring.

If my answer is perfect considered as brilliant

Best wishes

4 0
2 years ago
During the course of successful prenatal development, a human organism begins as a(n) _____ and ends up as a(n) _____.
Olenka [21]
<span>The correct answers are zygote and fetus. This is correct because the initial joining of the sperm and the egg is called the zygote. The zygote is the first step in prenatal development that grows and transforms over months into the final form, a fetus. The fetus is the last form of the zygote prior to birth.</span>
7 0
3 years ago
A physician who developed a system of medical knowledge based on anatomical studies?
Liono4ka [1.6K]

The correct answer is Galen.  

Galen considered anatomy as the foundation of medical knowledge, and he recurrently dichotomized and tested on the lower animals like pigs, sheep, and goats. Galen's supported dissection as the method to better the skills of surgery and research works.  

In his work, he illustrated seven pairs of cranial nerves, observed the structural distinctions between the veins and arteries, and illustrated the valves of the heart.  


8 0
3 years ago
Define what is meant by causal association according to Hill's criteria. From your own experiences, give an example of how the 3
xenn [34]

Answer:

Causal association is defined as two events in which one event leads to the cause/development of the second event such as the consumption of trans-fats and the onset of heart disease. In order to show the causal association, it is necessary to ensure that the 3 criteria of temporality, consistency, and strength are satisfied with respect to the relationship between consumption of trans fats and heart disease. According to this example involving the relationship between trans-fats and heart disease, temporality could be satisfied if one is consuming an excessive amount of foods containing trans-fats such asFrench fries, and who then ends up suffering from heart disease. In order to fulfill the criteria of strength, statistical tests would need to be performed in order to establish that there is a positive correlation between the individuals who consume trans-fats 10 times per week are shown to develop and require treatment for heart disease 90% of the time. Lastly, consistency may be fulfilled by showing that the same results are occurring despite applying the same testing measures on different groups of individuals during various increments. By applying the same tests on different groups, the chances of creating false-positives within the study can be significantly lowered. Numerous studies can be used to determine whether meaningful statements regarding the causal relationship between two factors can be established. By performing multiple studies on individuals’ eating habits and their health outcomes, researchers may then determine whether a relationship exists between the health challenges that they are faced with and the items that they consume.

Explanation:

4 0
3 years ago
Which molecules would dissolve well in oil
Romashka-Z-Leto [24]

Answer: A variety of substances will dissolve oil, including gasoline and carbon tetrachloride -- both of which have non-polar molecules. Acetone is a special class of solvent called “dipolar aprotic” that, depending on the circumstances, can act as a weak acid or base; it dissolves oil and mixes with water as well.

Explanation:

3 0
2 years ago
Read 2 more answers
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