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3 years ago

What does mantle mean in science?

Biology

1 answer:

alina1380 [7]3 years ago

8 0

In science, the mantle is a layer of the earth between the core (inner layer) and the crust (outer layer).

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In what way is living on earth simalar to living on an island

irakobra [83]

Answer:

Living on earth is similar to living on an island because its all about survival and the resources are limited. For instance living on earth the things you need to do to obtain food and provide shelter. Obtaining a job and or multiple jobs.

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2 years ago

Which Of the following is A true statement about mutually events

Nadusha1986 [10]

they cannot happen at the same time

4 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

How are nucleus and chloroplasts different?

Kamila [148]

Answer:

Chloroplasts are endosymbiotic descendants of photosynthetic cyanobacteria-like prokaryotes that were incorporated into cells more than a billion years ago.

Explanation:

Photosynthesis converts electrochemical energy from light into sugars and acts as the carbon source of the cell.

4 0

3 years ago

Read 2 more answers

Which of these are NOT true about the first step of protein synthesis? *

valina [46]

Answer:

Explanation:

The first step of protein synthesis is transcription, and transcription occurs in the nucleus of the cell... so...

8 0

2 years ago