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3 years ago

Most organisms cannot live in temperatures: a: above 0°C b: above 50°C c: below 50°C

Biology

2 answers:

Kazeer [188]3 years ago

8 0

C.below 50 degrees c.

Gre4nikov [31]3 years ago

5 0

C. below 50degrees c.

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How do bacteria help humans?

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The answer is D. Bacteria are used to make virus vaccines

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3 years ago

A student observes 5,000 RFUs in a 200μl aliquot from a G3-500 ml culture. How many total RFUs will be present in a G3-15ml samp

natka813 [3]

Answer:

The maximum no. of RFUs collected in the purification procedure $= 3.05 \times 10^5$ RFUs

Explanation:

No. of RFUs in a 200 ul (0.2ml) aliquot = 5000 RFUs

So, No. of RFUs in G3-500 ml culture $= 5000 \times \frac{500 ml}{0.2 ml}$ RFUs

$= 5000 \times 2500$ RFUs

$= 1.25 \times 10^7$ RFUs

Similarly, No. of RFUs in a G3-15ml sample $= 5000 \times \frac{15 ml}{0.2 ml}$ RFUs

$= 5000 \times 75$ RFUs

$= 3.75 \times 10^5$ RFUs

The maximum no. of RFUs collected in the purification procedure

$= 3.75 \times 10^5 \times 80$ % RFUs

$= 3.75 \times 10^5 \times 0.80$ RFUs

$= 3.05 \times 10^5$ RFUs

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3 years ago

Athletes can safely add muscle tissue by:

prohojiy [21]

<span>tripling protein intake. taking hormones duplicating those of puberty. putting a demand on muscles repeatedly</span>

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4 years ago

EASY QUESTION:

Alik [6]

Why conserve water? Because fresh water is rare and the process to clean water is expensive; therefore it shouldn’t be wasted. The next time you are tempted to waste water, think of all poor people who can’t afford clean water. Many children die and suffer everyday from dehydration and water that are unclean. :(

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3 years ago

There are two main types of cell division—mitosis and meiosis. Which of the following is a true statement about the end products

Andrei [34K]

Mitosis happens in all types of cells. in this division, the cell will double it's number of chromosomes and then will be divided into two separated cells. so the number of chromosomes in product is equal to the number of chromosomes of the first cell

but meiosis only happens to produce gametes. the cell will be divided into two separated gametes.
in this division the number of chromosomes won't be doubled. so gametes have the half number of a normal person chromosomes.

good luck

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4 years ago