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3 years ago

Which of the following answer choices best explains what process lead to each cells' unique structures

1 answer:

6 0

Answer: Differentiation allowed the brain and kidney cells to become specialized for the structures and functions they possess.

Explanation:

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In my garden there are pea plants. 9 short, 15 tall, and 13 normal height plants. What is the frequency of short pea plants?

Solnce55 [7]

Answer:

Answer - 9 : 37

Explanation:

Allele frequency refers to how common an allele is in a population. It is determined by counting how many times the allele appears in the population then dividing by the total number of copies of the gene.

8 0

3 years ago

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.

6 0

3 years ago

Contaminated soil can be rehabilitated by physical remediation methods, like aeration. What is another way soil can be treated t

Ivanshal [37]

Answer:

C) Flush out the contaminants with an excessive amount of water.

Explanation:

Water is universal solvent. It dissolve many solutes inside it. Soil is contaminated with number of chemicals which is used by farmers for the controlling of pathogens. These chemicals remains on the soil for very long time. These chemicals are removed from the soil by applying high amount of water which flush out the chemicals from the soil.

4 0

3 years ago

Read 2 more answers

Ep-12 when someone falls overboard, what action should the skipper take?

Andre45 [30]

When someone falls overboard, the action that skipper should take is to get flotation to the person and assign a spotter. Have someone keep the victim in sight.

6 0

4 years ago

Read 2 more answers

Muscles help keep blood flowing normally through the body. How do muscles accomplish this task?

bezimeni [28]

Answer:

Option A, by having a constant supply of blood

Explanation:

Blood that flows to the muscles bring oxygen from the atmosphere to the contracting muscles where it gets consumed. During large muscle exercise, two physiological needs arise – a) high and prolonged muscle blood flow and b) regulation of blood pressure so that there is adequate perfusion of pressure to all organs. In order to meet both the requirements, the blood flow increases so that the vasoligating muscles do not outstrip the cardiac output.

Hence, option A is correct

6 0

3 years ago