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Illusion [34]
3 years ago
11

What is the purpose of cellular respiration?

Biology
1 answer:
swat323 years ago
4 0
A. Break down sugars to use their energy directly
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Why do living things undergo meiosis?
sattari [20]

Answer:

Option B should be the correct answer

Explanation:

Mitosis is the process where living things grow and repair, on the other hand Meiosis is the process where the living organisms produce gametes.

Hope this helps!

4 0
3 years ago
Read 2 more answers
Yeast cells are recovered from a fermentation broth by using a tubular centrifuge. Sixty percent of the cells are recovered at a
Serga [27]

Answer:

\\ \omega = 5033.22 \ rpm

Explanation:

Given that:

R_1 = 0.6\\\\R_2 = 0.95\\\\\omega_1 = 4000 \ rpm\\\\\omega_2 = ???\\\\Q_1 = 12\ l/min\\\\Q_2 =  12\ l/min

For a continuous centrifuge ; solid recovery R ∝ \frac{\omega^2}{Q}

where;

ω = angular velocity of the centrifuge in rpm

Q = flow rate

SO;

R_1 \alpha \frac{4000^2}{12}

R_2 \alpha  \frac{\omega^2}{12}

\frac{R_1}{R_2} = \frac{4000^2}{12}  ÷  \frac{\omega^2 }{12}

\frac{R_1}{R_2} = \frac{4000^2}{12} * \frac{12}{\omega^2}

\frac{R_1}{R_2} = \frac{4000^2}{\omega^2}\\\\\frac{0.6}{0.95} = \frac{4000^2}{\omega^2}

{\omega^2} = \frac{4000^2*0.95}{0.6}\\\\\\{\omega} = \sqrt{ \frac{4000^2*0.95}{0.6}}\\\\\\ \omega = 5033.22 \ rpm

7 0
3 years ago
A fossil is found to have a 14c14c level of 73. 73. 0 ompared to living organisms. how old is the fossil?
AnnyKZ [126]

If the 14C level of fossils is 73% compared to living organisms. It will be 2602 years.

<h3>What is radiocarbon dating? </h3>

This method is used to estimate the relative age of carbon-based materials. This is done usually for fossils which originate from living organisms.

This age is estimated by estimating the percentage of carbon-14 isotopes in the fossil. This is done by comparing this percentage to a reference standard used internationally. This method is of tremendous use in palaeontology. It has also found its use in hydrology, oceanography, geology etc.

Fossil age is determined by

At = (Ao) x (1 - 0.5)^(t/h)

Here, At/Ao = 0.73

So, 0.73 = 0.5^(t/5730)

Therefore, t = 2602 years

Read more about carbon dating, here

brainly.com/question/3753282

#SPJ4

3 0
2 years ago
Why might arctic species, like the polar bear, have large feet?
astraxan [27]

Polar bears have large paws so that their body weight spread our over more space on the ice.

Imagine then as snowshoes for a human. They keep you up =).


Hope that helps! =)

8 0
3 years ago
An organism that regulates its temperature internally.
pav-90 [236]

Answer:

An organism that regulates it's temperature internally is the Ectotherm

7 0
3 years ago
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