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prisoha [69]
4 years ago
14

Why are thylakoids critical for life on Earth?

Biology
1 answer:
True [87]4 years ago
6 0
............................
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Answer:

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Fourteen Grey wolves were introduced into Yellowstone in 1995. By the end of 1997, there were 100 wolves in Yellowstone, and by
Shkiper50 [21]

Answer:

d) 625 grey wolves

Explanation:

Number of grey wolves in yellowstone;

1997 = 100 wolves

2002 = 275 wolves

Between 1997 and 2002 (a five year period), number of wolves increased by; 275 - 100 = 175 wolves

Population growth rate between 1997 and 2002 = 175 wolves per 5 years

Note that the population growth continued at the same rate from 2002 to 2012 (a ten year period).

Therefore;

if; 5 years = 175 wolves

10 years = (175 × 10) / 5 =350 wolves.

therefore, number of wolves between 2002 and 2012 = 350 wolves.

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Answer:

1. 1.26823082 mL

2. 0.5 g/mL

Explanation:

The density formula is:d=\frac{m}{v}

1.

Rearrange the density formula for v,

d=\frac{m}{v}

d*v=\frac{m}{v}*v                     <em>Multiply both sides by v.</em>

d*v=m

\frac{d*v}{d} =\frac{m}{d}                             <em>Divide both sides by d.</em>

v=\frac{m}{d}

Volume is found by dividing mass by density. The mass is 20 grams and the density is 15.77 grams per milliliter.

m= 20 \ g\\d= 15.77 \ g/mL

Substitute the values into the formula.

v=\frac{20 \ g} {15.77 \ g/mL}

Divide. Note the grams, g, will cancel.

v= 1.26823082 \  mL

2.

Use the density formula.

d=\frac{m}{v}

Density is found by dividing mass by volume. The mass is 10 grams and the volume is 20 milliliters.

m= 10 \ g\\v= 20 \ mL

Substitute the values into the formula.

d=\frac{10 \ g}{ 20 \ mL}

Divide.

d= \frac{1}{2} \ g/mL

d= 0.5 \ g/mL

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