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Akimi4 [234]
3 years ago
8

What's the theme of this story

Biology
2 answers:
shutvik [7]3 years ago
8 0
You don't have any story posted?
Kaylis [27]3 years ago
3 0
What story is it?

I'm confused
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Which of the following correctly describes the interaction between body system
Gre4nikov [31]

Answer:

A

Explanation:

Hopefully this helps

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3 years ago
What is the range for the following set of measurements?
amm1812
B: 2.3 grams to 9.8 grams
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Which part of the microscope is used to make small adjustments in the image of an object?
Rus_ich [418]

Answer:

The part of the microscope that is used to make small adjustments in the image of an object is the fine adjustment.

Explanation:

In the optical microscope, the fine adjustment knob allows precise focusing of the sample being studied.  This means making minimal adjustments in order to better observe the microscopic image.

After the initial focusing with the coarse adjustment knob, with the fine adjustment it is possible to highlight the details that require more attention, as well as the refringency of the sample, if it exists.

The other options are not correct because:

<em>     A. </em><em><u>Eyepiece</u></em><em>  is the lens that receives the image from the objective lens, that has contact with the eyes of the observer.</em>

<em>     C. </em><em><u>Coarse Adjustment  </u></em><em>is the rough magnification, used for the initial approximation of the image.</em>

<em>     D. </em><em><u>Objective lens</u></em><em> enlarges and defines the image of the sample on the slide.</em>

6 0
3 years ago
In a common reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, where does the sign
kobusy [5.1K]

In a reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron. The answer is motor neurons.

<h3>What is the reflex arc?</h3>

The reflex arc refers to the sequence of events since the body receives an external stimulus until it reacts.

In general terms,

1) A stimulus of varying nature reaches the body.

2) The peripheric nervous system -PNS- receives the stimulus and sends this information to the central nervous system -CNS-.

3) The CNS processes the information and sends another signal as a response to the stimulus.

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

The neurons involved in the mechanism are:

• Afferent or sensorial neurons

• Interneurons

• Efferent or motor neurons

Mode of Action:

  • <u>Ascending branch</u>

The stimulus reaches the body and is received by the specialized sensory receptors.

Afferent neurons, placed in the dermis and epidermis, receive this information from receptors, react and send it to the central nervous system as nerve impulses.

  • <u>Descending branch</u>

Interneurons in the CNS, process the information and send a motor response.  

Efferent neurons carry the response from the CNS to the effector organs, which might be either a muscle or a gland.

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

A motor neuron is formed by a cellular body, dendrites (cytoplasmic extensions that receive stimuli from other cells), and a long axon that is capable of conducting the electrochemical signals.

The axon brunches out into several extensions when it approaches the muscle.

At the end of each brunch, the axon is inserted in the muscle fiber surface, composing neuromuscular join.

This is the last part of the NS involved in the process before the muscle contracts.

After a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron, and from there to the effector.  

The corrct answer is motorneuron.

You can learn more about the reflex arc at

brainly.com/question/894334

#SPJ1

3 0
2 years ago
What did james hutton propose in 1795?
brilliants [131]
A two volume version of his "theory of rain"
3 0
3 years ago
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