What are dolphins made/ what support structures do they have?

Biology

1 answer:

Vedmedyk [2.9K]3 years ago

6 0

They have a arched back in order to jump and get air

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A quantity of a gas has an absolute pressure of 400 kPa and an absolute temperature of 110 degrees kelvin. When the temperature

VMariaS [17]

Answer: The new pressure of the gas is (A) 854.46 kPa.

The pressure of a given mass of gas at the absolute temperature 110 degrees K is 400 kPa.

The temperature is raised to 235 degrees K with constant volume.

Therefore,

Initial pressure $P_{1}=400kPa$

Initial temperature $T_{1}=110K$

Final temperature $T_{2}=235K$

Final pressure $P_{2}=?$

According to pressure law of gas,

$\frac{P_{1} }{T_{1} }=\frac{P_{2} }{T_{2} }$ ( at constant volume) $P_{2}=\frac{P_{1}T_{2} }{T_{1} }$

$P_{2}=\frac{400X235}{110}$

$P_{2}=854.46kPa$

Thus, the required new pressure of the gas is 854.46 kPa.

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During cellular respiration, NADH:________.a. is converted to NAD+ by an enzyme called dehydrogenase. b. none of the choices are

skad [1K]

Answer:

a. is converted to NAD+ by an enzyme called dehydrogenase

Explanation:

The electron transport chain of cellular respiration is the final step that oxidized NADH and FADH2. These reducing powers are formed during glycolysis and Kreb's cycle. Complex I of the electron transport chain present in the inner mitochondria membrane is NADH dehydrogenase. This protein complex accepts electrons from NADH and oxidizes it into NAD+. NADH dehydrogenase couples oxidation of NADH with the pumping of proton towards the intermembrane space.

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Give two possible factors that could have an influence on the speed of water uptake by the roots

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Weather conditions such as wind, the path of the flow

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Which of the following gases was not believed to be present on Earth at the time of its formation 4.6 billion years ago? a. oxyg

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A. Oxygen
I believe that's the answer

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