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Serggg [28]
3 years ago
12

. A world-class cyclist training for the Tour de France increases his respiration rate while pedaling up hills. What characteris

tic of life does this represent?
Biology
1 answer:
ra1l [238]3 years ago
3 0
Yes it is because it is
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why is DNA a good molecule (compared to liquid or carbohydrate) to have the instructions for protein synthesis?
alex41 [277]
A DNA or good molecule needs protein synthesis because without it it would not be able to function properly!
4 0
2 years ago
4. What is the mass of N2H4 gas in a 350.0 mL container at 50.0 °C, if the pressure of the gas is
vovangra [49]

Answer:

0.36g

Explanation:

Given parameters and conversion to standard unit

 To solve this problem we must assume ideality

Volume of N₂H₄  =  350mL  = 0.35dm³

Temperature of container  = 50°C  = 50 + 273  = 323K

Pressure  = 885torr;

               760torr  = 1atm

               885torr  = \frac{760}{885}   = 0.86atm

Unknown:

Mass of the compound  = ?

Solution:

The mass of the compound can be derived using the expression below;

         Mass = number of moles x molar mass

molar mass of N₂H₄ = 2(14) + 4(1)  = 32g/mol

To find the number of moles;

       PV  = nRT

          n  = \frac{PV}{RT}

P is the pressure

V is the volume

R is the gas constant = 0.082atmdm³mol⁻¹K⁻¹

T is the temperature

         n  = \frac{0.86 x 0.35}{0.082 x 323}   = 0.01mole

So,

    Mass  = 0.01 x 32  = 0.36g

5 0
2 years ago
Which of the following accurately compares the stolon and mycelium in fungi? (2 points) The stolon transports water and nutrient
Zanzabum
This statement accurately compares the stolon and mycelium in fungi.

The stolons of two fungi connect to form gametangia, while the mycelium is made up of hyphae.
5 0
3 years ago
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What is the difference between aerobic and anaerobic respiration?
valentina_108 [34]
Anaerobic respiration<span> is in muscles. Glucose is not completely broken down, so much less energy is released than during </span>aerobic respiration<span>. There is a build-up of lactic acid in the muscles during vigorous exercise. The lactic acid needs to be oxidised to carbon dioxide and water later.</span>
3 0
3 years ago
In which of the following ways does a fertilized egg differ from an unfertilized egg? A) A fertilized egg has more unpaired chro
jok3333 [9.3K]
Answer - D
Gametes always have half the number of chromosomes compared to the somatic cells, hence an unfertilized egg would have half the chromosomes from the mother, and a fertilized egg will contain diploid number of chromosomes. Half of them from inherited from each of the two parents.
7 0
3 years ago
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