What would happen to the planets if the sun’s gravity did not exist

Which statement about stress is true? Stress occurs when the body physically sustains grave injury due to environmental factors.

evablogger [386]

Base on the question which ask to choose among the following choices that state the statement the is telling the truth about stress and base on my further research, and further investigation, the answer would be Acute stress is healthy and productive, unlike chronic stress. I hope you are satisfied with my answer and feel free to ask for more

8 0

3 years ago

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What is affected by the electrical signal sent by the fourth structure of the reflex arc?(This will be the fifth structure in th

Stells [14]

Answer:

The effector organ is affected by the fourth structure of the reflex arc.

Explanation:

When talking about the reflex arc, we refer to the sequence of events that occur for the body to react to an external stimulus.

In general terms, the peripheric nervous system receives information from a stimulus coming from the external environment. This information is sent to the central nervous system, where it is processed. From the CNS, another signal is sent as a response to the stimulus. This mechanism is known as the reflex arc.

Five elements compose the reflex arc, which are receptors, three types of neurons, and effectors.

There are three types of neurons involved in the mechanism:

• Afferent or sensorial neurons

• Interneurons

• Efferent or motor neurons

Action:

Ascending branch

The stimulus reaches the body and is received by the specialized sensory receptors. Information is received by these receptors and converted from stimuli energy (temperature, pressure, light, etc.) to action potential energy. Afferent neurons, placed in the dermis and epidermis, receive information from receptors, react and send the information to the central nervous system as nerve impulses.

Descending branch

Once the information reaches the central nervous system, it is processed by the interneurons that analyze it before sending a response. Interneurons manage many sensorial signals, evaluate and compare them, and send a motor response.

Efferent neurons receive information from the interneurons and are stimulated to carry these new signals from the central nervous system to the cells of the effector organs. The effector organ can be a muscle or a gland.

Finally, the target tissue responds to the stimulus as a contraction, if it is a muscle, or as hormones release if it is a gland.

8 0

3 years ago

The control center and director of cell activities is the _____.

lord [1]

The control center and director of cell activities is the nucleus. The nucleus, which holds all of the DNA, is found at the center of the cell.

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3 years ago

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The portion of the vascular plant which has the majority of the methods of asexual reproduction occurring in it is called the .

melamori03 [73]

The answer is letter c

3 0

3 years ago

Sexual reproduction is important for the survival of the species. It is important for ALL BUT ONE of these reasons. That is

Ne4ueva [31]

Answer:

C) it is necessary for the survival of the individual.

Explanation:

Sexual reproduction is rarely, if ever, necessary for the individual. This is not a reason for its importance. However, while not important for the individual, sexual reproduction is important for the species. It allows genetic variability among offspring, as well as mutations. This ensures that not all members of a species are the same, and in this way, they have a better chance of surviving. Moreover, it allows for offspring to be produced at a faster rate.

5 0

3 years ago