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Maslowich
2 years ago
10

Explain the relationship between organs and organs systems Use an example of an organ and organ system to explain. Provide your

answer using at least two complete sentences Refer to the rubric below to see how you will be evaluated ​
Biology
1 answer:
Yakvenalex [24]2 years ago
4 0

Answer:

Brainliest pls

Explanation:

Organs are grouped into organ systems, in which they work together to carry out a particular function for the organism. For example, the heart and the blood vessels make up the cardiovascular system.

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ECG wave that causes ventricles to contract
GarryVolchara [31]

Answer:

S-T segment of ECG shows ventricles contraction.

Explanation:

The ECG is used to measure the electrical signals that controls the contraction and relaxation of heart, most commonly known as heart rhythm. S-T segments are the region after the QRS wave in ECG which is further followed by T waves. The S-T segment is generally shown as a straight line as no electrical signal pass through it and this is the time when ventricles contraction in the heart takes place.

6 0
3 years ago
The thin layer of white blood cells and platelets found above the packed red cells in centrifuged blood is called the ______
Alla [95]

Answer:

Buffy coat.

Explanation:

Between the plasma, and red blood cells the platelets, and white blood cells form a thin white layer which is known as Buffy coat following density gradient centrifugation of the blood.

Centrifugation is the process where the distinguish between cell fragments, and cell from the liquid intracellular matrix occurs. Centrifugation is a technique which separates the particles according to their size, density, viscosity and shape with the help of centrifugal force.

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3 years ago
A vaccine works to protect a mammal from a specific virus by having the mammal's body produce antibodies. The actual vaccine con
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D. Weaken forms of the virus
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3 years ago
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How many years ago did the rock underneath Earth's outer layer melt into
andre [41]

Answer:

4.5 billion years ago

Earth hasn't always been a blue and green oasis of life in an otherwise inhospitable solar system. During our planet's first 50 million years, around 4.5 billion years ago, its surface was a hellscape of magma oceans, bubbling and belching with heat from Earth's interior.

Explanation:

6 0
2 years ago
What ion movement changes the membrane potential in a contractile cell from negative to positive during the rapid depolarization
Lesechka [4]

Answer:

The influx of calcium ions.

Explanation:

The influx of calcium ions at a certain point produces phase of the action potential also called depolarization which results in the ion movement changes the membrane potential from negative to positive inside the cell.

In action potential, calcium ions may control gene transcription, cell excitability, and neurotransmitter release. In chemical synapses, the influx of calcium ions leads to vesicles filled with neurotransmitters move to the surface of the cell, and into the synaptic cleft release their contents.

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2 years ago
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