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3 years ago

What do the tympanic membranes do for the frog?

1 answer:

7 0

A tympanic membrane, (is also called a tympanum), is the circular patch of skin directly behind the frog’s eye that we commonly call an eardrum. It functions much like our’s does.

The tympanum sends sound waves to the middle of the war then to inner ear, which allows a frog to hear both in the air and below water.

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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

3 years ago

Organelles are structures within the cell that perform important functions. Which of the following correctly matches the

Firdavs [7]

Answer:

mitochondria: powerhouse of the cell

Ribosomes: the places where proteins are synthesized in our cells.

nucleus houses DNA;controls cell

Vacuole: holds waste and fluids from cell

Ribosomes: tiny organelles that contain RNA and specific proteins within the cytoplasm.

Explanation:

Organelles make up the subunits of a cell. There are numerous each with their own function.

3 0

2 years ago

A series of choices between two characteristics that is used to identify organisms is called a?

Stella [2.4K]

The correct answer is a dichotomous key. Basically, you use the key to decide what species an organism is by looking at what traits it has, and if it doesn't have some traits you can instantly rule out a large number of species which brings you closer to your answer of what the species is that you're looking at.

3 0

3 years ago

Read 2 more answers

Dr. Hodges notes that David's exhaled carbon dioxide levels are elevated. List all the metabolic pathways that function to synth

Mrrafil [7]

Answer:

Explanation:

The production of ATPs for skeletal muscle contraction depends on the conditions that the muscles are exposed to.

In presence of abundant oxygen, to the cells Aerobic respiration-cellular respiration is the most ideal. 32 ATPs and 4 C02 are produced as by-products during the process as by products majorly two C02 from each of the 2 acetyl Co A that enters the kerb's cycle.

Likewise direct phosphoryaltion of ADP to ATP gives 32.0 kj/mol of heat liberated but no C02 was produced. This takes place during chemiosmosis. with 28ATPs produced.

In absence of oxygen, anaerobic respiration of skeletal muscles produced ATPs from glycolysis, heat and 2C02 as products, but not as by-product.Through alcoholic fermentation pathway.

Therefore ,the correct answer is Aerobic respiration, because it gives out C02 which is a by-product, released out of the body as waste from the lungs,and not use up in the body.

3 0

3 years ago

Compare a cell that has grown too large to be efficient with a wireless network that has too many users explain how both have th

Natasha_Volkova [10]

The have similar problems because since the cell has grown too large, it takes away nutrients that other cells need to survive. This is similar to too many users on a wireless network because with too many users, their is not enough network to supply each device on the wireless network.

4 0

3 years ago

Read 2 more answers