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IceJOKER [234]
3 years ago
8

To allow communication, neurons A) are physically connected, allowing electrical impulses to travel across neurons. B) send chem

ical messages across small gaps between neurons. C) send electric sparks into the surrounding conductive fluid. D) have the most powerful impact on the other neurons that they touch directly
Biology
1 answer:
PtichkaEL [24]3 years ago
3 0

Answer:

The correct option is B) send chemical messages across small gaps between neurons.

Explanation:

Neurons are the cells that make up our nervous system. Although they are connected to each other, they do not maintain physical contact with each other. The nerve impulse travels through the neuron, and when it reaches its dendrites, it is transmitted to the next neuron through the synapse, which is produced through the exchange of chemical substances called neurotransmitters. Neurons communicate with each other through the small spaces (or small gaps) between them, in a process known as synaptic transmission (where synapses are the connections between neurons). This synapse requires neurotransmitters (for example dopamine or glutamate) for the transmission of the signal or message, which after being released will bind to specific receptors causing an ionic change by opening or closing a channel.

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Imagine that an accident has exposed you to a mutagen. however, the medical report indicates that only your germ cells (not your
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5 0
3 years ago
Read 2 more answers
Which of the following is not a feature of cardiac muscle? Multiple Choice They depend almost exclusively on aerobic respiration
Karo-lina-s [1.5K]

Answer:

The correct answer will be option-They have about the same endurance as skeletal muscle fibers.

Explanation:

Cardiac muscle is one of the three types of muscle which is present in the Heart of the organism.

The muscle fibres of the cardiac muscle possess a high amount of myoglobin- an Oxygen carrying molecule which can store the oxygen for some time.  

The cardiac muscles have to pump blood in the body, for which they require a high amount of ATP, so they possess larger mitochondria.

The studies have shown that the cardiac muscles store glycogen carbohydrate which is used during the relaxation phase in stress conditions.

Since the cardiac muscles do not have the same endurance as the skeletal muscles which with physical exercise can be increased therefore the selected option is the correct answer.

5 0
3 years ago
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Most large-scale coal mining in the western United States uses which extraction method?
Y_Kistochka [10]

The answer would most likely be A.Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed. In contrast to underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels.

Surface mining began in the mid-sixteenth century[1] and is practiced throughout the world, although the majority of surface coal mining occurs in North America.[2] It gained popularity throughout the 20th century, and surface mines now produce most of the coal mined in the United States.[3]

In most forms of surface mining, heavy equipment, such as earthmovers, first remove the overburden. Next, huge machines, such as dragline excavators or Bucket wheel excavators, extract the mineral.

6 0
3 years ago
Read 2 more answers
Select the best answer for the question
Setler79 [48]

When we read a nutrition label from the favorite package of cookies and it says that each package of cookie contains 180 calories and thus it contains 1000 calories.

Explanation:

It is given in the question that total calories to be taken on a lower case.

So let us assume a cookie packet which contains 6 cookies.

Then the total amount of calories in the entire packet is that one would be equal to the product of total calories in one packet and the total number of calories.

TC = C  * N

Where TC represents the total calories, C represents the calories in one cookie and N signifies the total number of cookies.

By substituting the given values in the above equation, we get

TC = 180 * 6

TC = 1080

The nearest answer is 1080, Hence, the calories of the cookies is 1000 cal

5 0
3 years ago
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