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romanna [79]
2 years ago
12

Which scientist was the first to use the term cell to describe what he saw under the microscope?

Biology
1 answer:
stiks02 [169]2 years ago
5 0

Answer:

Scientist Robert Hooke

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Hypothesis: If i add the egg to vinegar then the shell will dissolve within 24 hours
nadezda [96]

Answer :

Vinegar is a weak acid. This is used to make a naked egg. When an egg is added in the vinegar for one day / 24 hrs, it reacts with the eggshell.  The calcium carbonate shell gets dissolve.

Then an egg without shell is formed and the size of the egg does not change. The calcium carbonate reacts with acetic acid and forms carbon dioxide.

When the shell-less egg is kept in the vinegar for 48 hrs i.e. 2 days again, the water content in it enters into the eggs through the membrane. Then the egg gets somewhat bigger.

Otherwise, for 24 hrs, vinegar is acting like an isotonic solution and only dissolves the shell. This experiment would be done for showing the osmosis process through the cell membrane.

6 0
3 years ago
A 1475 kg car with a speed of 66.5 km/h brakes to a stop. How many cal of heat are generated by the brakes as a result?
SpyIntel [72]

Answer:22.180

Explanation:divide the two together then use the first three number after the decimal.

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8 0
3 years ago
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Describe how a supernova and neutron star are related?
MakcuM [25]

Answer:

Neutron stars are one of the possible ends for a star. They result from massive stars which have mass greater than 4 to 8 times that of our Sun. After these stars have finished burning their nuclear fuel, they undergo a supernova explosion. ... It collapses so much that protons and electrons combine to form neutrons.

4 0
2 years ago
Summarize how urine forms in the kidney.
andrew11 [14]
The renal<span> artery carries blood into the </span>kidneys, which once there is filtered by nephrons. The waste filtered by these nephrons is combined with water to makeurine<span>. As the </span>urine is produced<span> it drains out of a tube called the ureter and collects in the bladder

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7 0
3 years ago
Golf courses make use of fertilizers to keep the grass green and healthy. Using your knowledge of osmosis, explain how applying
Nostrana [21]
Osmosis is the diffusion of water. Water tends to diffuse to the area with a higher concentration of solute. (Particles) In this case, Im assuming the fertilizer is the solute because it contains chemicals. Therefore, since water tends to diffuse to higher concentration of solute, the water in the grass will diffuse out to dilute the fertilizer on the surface of the grass. Without water, the grass will be dehydrated and shrivel up and die. Hopefully you find my answer helpful!
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2 years ago
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