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kogti [31]
2 years ago
10

PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!

Biology
1 answer:
Lelechka [254]2 years ago
3 0
A) transports oxygen and carbon dioxide for the respiratory system
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Which is a difference between the Paleozoic and Mesozoic era?
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Explanation:

Animals lived in the water during the Mesozoic and on land in the Paleozoic. Animal complexity increased during the Paleozoic while the first flowering plants appeared in the Mesozoic era. ...

The Paleozoic era, not the Mesozoic era, had the first dinosaurs. The first mammals emerged in the Paleozoic era, not the Mesozoic era. The Mesozoic era, not the Paleozoic era, had the first animals with shells.

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A gas delivers 874 J of heat and then has 159 J of work done upon it. The change in internal energy of the gas is
Nesterboy [21]

The change in internal energy of this gas sample is equal to: c. 715 J.

<u>Given the following data:</u>

  • Quantity of heat = 874 J.
  • Work done = 159 J.

<h3>What is the First Law of Thermodynamics?</h3>

Mathematically, the the First Law of Thermodynamics is given by this formula:

\Delta H = Q-W

Where;

  • \Delta H is the change in internal energy.
  • Q is the quantity of heat.
  • W is the work done.

Substituting the parameters into the formula, we have;

\Delta H =874-159\\\\\Delta H = 715

Change in internal energy (ΔH) = 715 Joules.

Read more on enthalpy change here: brainly.com/question/11628413

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2 years ago
At what point during meiosis do homologous chromosomes pair up?
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Prophase 1

Explanation:

In prophase 1, homologous chromosomes pair up and exchange sections of DNA in a process called crossing over.

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Which of the following has the highest in chemical energy (energy stored in chemical bonds)?
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ADP
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Which of the following is NOT a part of a DNA molecule?
almond37 [142]

Answer:

Explanation:

a sugar, a phosphate group, and a nitrogenous base.

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