What are two ways your body uses carbohydrates.

1 answer:

5 0

Carbohydrates are used by the body for energy and structural support in cell walls of plants and exoskeletons of insects and crustaceans.

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Why is the horseshoe crab an example of a living fossil?

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Answer:

A. There are fossils of extinct ancestors of horseshoe crabs and the species is still alive today.

Explanation:

C and D have more to do with how it can be a fossil. It is a living fossil because its ancestors have been found in fossils, yet it continues to live today.

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3 years ago

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The number of cells in an average-sized adult human is on the order of 10^14 cells. Use this information, and the estimate that

KengaRu [80]

IF:
Number of cells: $C = 10^{14}$
DNA lenght: $D = 2m = 12.42 * 10^{-4} mi$
Distance from Earth to Sun: $ES=93000000 mi = 9.3* 10^{7}mi$

Then:
a) Over how many miles would the total DNA from the average human stretch?
The answer is product of multiplication of the number of cells (C) and the DNA length (D):
Total DNA: $T = C*D$
⇒ $T = 10^{14}*12.42* 10^{-4} mi$
⇒ $T = 12.42* 10^{14-4} mi$
⇒ $T = 12.42* 10^{10} mi$
The total DNA from the average human will stretch $12.42* 10^{10} mi$

b) How many times would the total DNA from the average human stretch from Earth to the Sun and back?
The answer is concluded from the ratio of the total DNA length (T) and the twice (because of stretch to the Sun and back, thus, two directions) of distance from Earth to the Sun (ES) and :
Ratio: $R= \frac{T}{2*ES}$
⇒ $R = \frac{12.42* 10^{10}mi }{2*(9.3* 10^{7}mi)}$
⇒ $R = \frac{12.42* 10^{10}}{18.6*10^{7}}$
⇒ $R = 0.6677* 10^{10-7}$
 ⇒ $R = 0.6677* 10^{3}$
 ⇒ [tex]R = 667.7
Thus, 667,7 times will the total DNA from the average human stretch from Earth to the Sun and back.

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3 years ago

As opposed to external fertilization, internal fertilization ensures that

Vilka [71]

d. only the fittest of sperm and egg combinations will survive.

Others are external fertilization:

a. all of the sperm will fertilize eggs.
b. sperm and egg will be released simultaneously.
c. the number of sperm and eggs produced will be equal.
e. sperm will be protected until they can unite with the eggs.

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What type of country is described by higher birth rates, higher infant mortality rates, and lower average income?

natulia [17]

The answer is, "B", "Developing country".

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Name at least two of the microorganisms known to cause disease.

Svetlanka [38]

Answer: a) Bacteria
Example of a disease caused by bacteria –
Tuberculosis (TB) is a kind of respiratory disease caused by bacterium called Mycobacterium tuberculosis.
B) Fungi
Example of a disease caused by Fungi
Athlete's foot is a fungal disease caused by Trichophyton (hopefully this helped)

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3 years ago

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