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vazorg [7]
3 years ago
15

How do astronomers rate the magnitude of a star?

Biology
1 answer:
qwelly [4]3 years ago
4 0
The astronomers rate the magnitude of a star with a SCALE.
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If a cell has a relatively high energy need, you would expect it to have _________ mitochondria than a cell with a lower energy
Rasek [7]

Answer:

more

Explanation:

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2 years ago
A historian is reading a book of ancient history that describes a plant bred for long, leafy flower buds that never open, result
guajiro [1.7K]

Answer: cauliflower

Explanation: i just did it on savvas

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2 years ago
Which geometric solid is the best model for these cells?
Ilya [14]

Answer:

D. A cube

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Epithelium cells are a type of cell that has a simple cuboidal epithelium that consists of only a single layer of cells that are cube-like or cuboidal in shape.  These cells have large, spherical nuclei present in the center. These cells are cube-shaped cells

5 0
2 years ago
when measuring the blood pressure, the cuff is deflated until two consecutive beats are heard through the stethoscope. This meas
dem82 [27]

Answer: Systolic pressure.

Explanation:

Every time the heart beats, it pumps blood into the arteries, which are vessels through which blood circulates from your heart to your tissues with the oxygen and nutrients they need. Blood pressure is the force of the blood pushing against the walls of the arteries, and is highest when the heart beats, pumping blood, which is measured as systolic pressure (i.e., when the heart contracts). On the other hand, diastolic blood pressure refers to the pressure of blood in the artery when the heart relaxes between beats (i.e., when the heart relaxes). Since there are two types of pressures, blood pressure readings are given in two numbers, with the top number being the systolic pressure and the bottom number being the diastolic pressure.  

For example, if the systolic pressure measured in a person is 125 millimeters of mercury (mm Hg) and the diastolic pressure is 85 mm Hg, the blood pressure is recorded as 125/85.  

So, <u>the systolic blood pressure is registered with the stethoscope when the cuff is deflated.</u> When two heartbeats are heard, the pressure gauge reading is recorded. <u>When the heartbeat ceases, the cuff pressure is released and the diastolic pressure is measured at this time.</u>

4 0
3 years ago
An oil spill happened at the Wild Harbor salt marsh on Cape Cod, Massachusetts in 1969. The oil has persisted in the ground sinc
Dima020 [189]
I would guess that the answer would be :'<span>These organisms dig more shallow burrows than they used to.</span>' If the crabs actively dig burrows, as many crab species do, and a layer of oil has persisted in the lower soil strata, it makes sense that the crabs would be reducing the depths of their burrows to avoid contact with the oil. The other possibility is that the crabs might might migrate to deeper waters, but this is less likely because the crabs would be evolved to utilise the intertidal zone. 
6 0
3 years ago
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