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2 years ago

The boundary between conducting zone and respiratory zone structures occurs at the

1 answer:

Rudiy272 years ago

3 0

The boundary between conducting zone and respiratory zone structures occurs at the terminal bronchiole/respiratory bronchiole junction. The major respiratory structures span the nasal cavity to the diaphragm. Functionally, the respiratory system can be divided into a conducting zone and a respiratory zone. The conducting zone of the respiratory system includes the organs and structures not directly involved in gas exchange. The gas exchange occurs in the respiratory zone.

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Assume that the red blood cell counts of women are normally distributed with a mean of 4.577 million cells per microliter and a

postnew [5]

Answer: C. 82.26%

Explanation:

Given : The red blood cell counts of women are normally distributed with

$\mu=4.577\text{ million cells per microliter}$

$\sigma=0.382\text{ million cells per microliter}$

Let X be the random variable that represents the red blood cell counts of randomly selected woman.

Z-score : $z=\dfrac{X-\mu}{\sigma}$

For X=4.2

$z=\dfrac{4.2-4.577}{0.382}\approx-0.99$

For X=5.4

$z=\dfrac{5.4-4.577}{0.382}\approx2.1544$

Now, the probability that the women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per microliter will be :-

$P(4.2$

Hence, 82.26% of women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per microliter.

4 0

2 years ago

Living organisms do not play a role in the water cycle.<br> True or False?

tester [92]

Answer:

True.

Explanation:

The water cycle does not exclusively need life to function. The water cycle consists of 3 steps in any given order:

1. Water falls to the surface.

2. Water evaporates from the surface.

3. Water condenses into clouds in the atmosphere.

5 0

2 years ago

. What makes a TEM useful for examining structures inside cells?

Tasya [4]

Answer:

big pp BIG PP small pp :(

3 0

2 years ago

The bones of the skull,spine,and rib cage make up the______ _______ _______

DENIUS [597]

Answer:

The axial skeleton is composed of the bones of the skull, ossicles of the ear, hyoid bone, vertebral column, and ribcage.

Explanation:

brainliest

5 0

2 years ago

Read 2 more answers

How to explain natural selection?

loris [4]

Natural selection is basically when organisms with the best traits survive and pass on their good traits to their offspring so that they will adapt easily and survive. Organisms who do not have ‘good traits’ that help them adapt and escape predators will be killed or eaten before they reproduce.
So in the end, natural selection is a form of evolution that allows the ‘fittest’ animals to survive and reproduce, while weeding out the unfit.

8 0

2 years ago