3 years ago

Please help!!! Will mark brainliest!!!

Biology

1 answer:

Sauron [17]3 years ago

3 0

third fourth first fifth second

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In animals, carbon dioxide waste is exchanged for

LUCKY_DIMON [66]

Answer:

oxygen

Explanation:

Through the process of respiration , in lung the carbon dioxide from the blood is exchanged with oxygen.
The smallest dunctional unit if the lung is the alveoli
At this level the gases are exchange through the capillaries present close to the alveoli.
The concentration gradient ,meaning the greater amount of oxygen present in the lungs and greater amount of carbon dioxide in the blood creates a gradient that allow the movment of oxygen into the blood and carbon dioxide in the alveoli through the membrane .
Partial pressure created allows the easy movement .The carbon dioxide get into the trachea and expelled through nose and mouth.

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You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:

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The mutations occur at a rate of 0.56 base changes every 1 billion years. If this rate stays consistent, the mutation rate can be used to determine when different lineages of a particular species split

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Which is more likely to contain organic compounds?

makkiz [27]

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c living things

Explanation:

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A patient is admitted to the hospital with a diagnosis of abdominal aortic aneurysm. which signs and symptoms would suggest that

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Severe low back pain and bruising along his flank

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The establishment of a bird reservation is a way to (1 point)

never [62]

$\bold{ANSWER:}$

Last option: Preserve an ecosystem

$\bold{EXPLANATIONS:}$

• The establishment of a bird reservation is a way to preserve an ecosystem because reservation provides suitable environment to organism. A healthy ecosystem means large number of biodiversity.

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