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STALIN [3.7K]
3 years ago
15

Which of the following statements about bird respiration is FALSE?

Biology
1 answer:
zheka24 [161]3 years ago
7 0

Answer:D

Explanation: The pulmonary air sacs of birds only permit a unidirectional flow of air through the lungs. Unidirectional flow means that air is inhale and exhale through one trachea alternatively. This means the bird lungs only receive largely fresh air which has a high oxygen content during inhalation and do not receive fresh during exhalation. While air flow bidirectional in mammals.

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Which is more precise - a measurement of 2.0 or a measurement of 2.05?
UkoKoshka [18]
2.0 because 2.05 is about two and a half where as 2.0 is considered to be a whole number , hope this helps
4 0
3 years ago
Jamie is a hairstylist who works in a salon. He noticed that when many of the stylists are blow drying hair the power goes out.
horrorfan [7]
Is it because there is to many bliw dryes plugged in
6 0
3 years ago
A reflex arc consists of
s2008m [1.1K]

Answer:

All of the above.

Explanation:

Reflex arc may be defined as the neural pathway that control the function of the reflex system of the body. Two main types of reflex arc are somatic reflex arc and autonomic reflex arc.

The afferent neuron carries signal from the receptors to the integrating center via the interneuron. The efferent neuron carries signal from the integrating center to the effector organ via the inter neuron.

Thus, the correct answer is option (e).

3 0
3 years ago
Hen there is a cut in the skin and bacteria enter the body, the immune system responds. First, macrophages approach the area of
Semenov [28]

Correct answer: B). The phagocytotic barrier, which is a part of innate immunity

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It is a mechanism which is used by the immune system to kill and processing of antigen that play an important role in innate immune response.

Hence, the correct answer would be option B.

4 0
3 years ago
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Carbon is found in only living organisms true or false
Marrrta [24]
This is false!
Carbon is found in many substances!

For example, we breathe out carbon (Carbon dioxide) and as a result, there is an amoung of carbon in the air.

Carbon is also found in many rock types, such as in coal.
4 0
3 years ago
Read 2 more answers
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