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3 years ago

What is the name of Earth’s innermost layer?

Biology

2 answers:

andriy [413]3 years ago

8 0

Answer:

A.) Core

Explanation:

Core definition: a central and often foundational part usually distinct from the enveloping part by a difference in nature.

IrinaVladis [17]3 years ago

7 0

Answer:

The correct answer is option A. core.

Explanation:

The core is the innermost layer of the earth. It is a very hot, dense center of the earth that is beneath the solid mantle and crust that are cold. It is a solid ball that has about a 3485-kilometer radius.

The core of the earth is very hot regions which are said to be because of radioactive decay of different elements.

Thus, the correct answer is option A.

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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.

6 0

3 years ago

Blood plasma is filtered in the __________.

ziro4ka [17]

The Kidneys.

The plasma passes through the kidney where it is filtered, a special filtration unit called "glomeruli" and then excreted as a low molecular weighted product into the urine. The purpose of our urine is to secrete waste products from the body. So you can see how the glomerular filtration mechanism of the kidneys plays a major role in the function of our bodies. The primary function of our kidneys is to filter out all the "bad stuff" in lamest terms.

-Current Medical Student (College Level)

4 0

3 years ago

A gram-positive bacteria suddenly acquires resistance to the antibiotic methicillin. This trait most likely occurred due to

devlian [24]

The correct answer is option C, Conjugation

During conjugation the genetic material is transferred between two bacteria through a bridge like connection. In this was the bacteria acquires the resistance to the antibiotic methicillin

7 0

3 years ago

DNA replication makes two new DNA molecules:

OLga [1]

C , because Each strand of DNA acts as a template for synthesis of a new, complementary strand. Replication produces two identical DNA double helices, each with one new and one old strand.

7 0

3 years ago

Is this mRNA or rna need help please need the answer in a hurry

Vlad [161]

It is mRNA because RNA, which stands for ribonucleic acid, is a polymeric molecule made up of one or more nucleotides. ... During the process known as transcription, a RNA copy of a segment of DNA, or messenger RNA (mRNA), is made. This strand of RNA can then be read by a ribosome to form a protein.

5 0

3 years ago