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masya89 [10]
3 years ago
14

Both invertebrates and vertebrates, with the exception of the

Biology
1 answer:
frosja888 [35]3 years ago
5 0

The answer is D) Sponge

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What mistake does the man make in building the second fire? Apex
Vlad1618 [11]

<u>Answer</u>:-

It is option c:

“He build sit underneath a tree”.

Explanation:

The second fire goes out because the man makes a mistake:

He builds the fire under a Pine tree. Although this makes it easier for him to collect sticks to feed the flames, it ultimately proves fatal. Eventually, the snow falls onto the fire itself, extinguishing it and leaving in its place a pile of fresh ❄️ snow.

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2 years ago
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What is upwelling and why is it important to the marine ecosystem?
xxTIMURxx [149]
Upwelling is a process in which the deep and cold water rises to the water surface and not sea surface. This process plays an important role in maintaining balance in our ecosystem as it boost the marine productivity by washing the nutrients from deeper waters to the photic layer where photosynthesis is promoted.
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3 years ago
Which of the following describes the difference between nitrogen-14 and nitrogen-15? ( point)
AveGali [126]

Answer:

D. Nitrogen-14 has 7 electrons, 7 protons, 7 neutrons nitrogen-15 has 7 electrons, 7 protons, and 8 neutrons

Explanation:

In an atom, number of electrons is equal to the number of protons.  And the number of neutrons is equal to the difference between the mass number of the atom and the atomic number. For Nitrogen 14, electron is 7, proton is also 7 as number  of electrons and number of protons are equal. So, the neutron will be 14-7= 7. For Nitrogen 15, electron number is 7 so proton number will be also 7. Neutron number for nitrogen 15 will be 15-7= 8. That's why the answer is option number 4.

8 0
2 years ago
When a plant cell in normal water is moved into a 20% salt solution, the cytoplasm and vacuole of the plant cell shrink. the rea
son4ous [18]
The salt solution is hypertonic to the plant cells. water from the plant cells seeped out. plasmolysis apply
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2 years ago
Which air mass often originates as a different air mass in siberia and is subsequently altered?
podryga [215]
It is a cold Artic air mass over Siberia. Air masses are altered because it doesn't stay in one place and changes as it moves due to the temperature of environment that can be caused by moisture. The cold Artic Mass from Siberia will go to the North Pole, Canada then moves further to the South area.
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3 years ago
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