All categories

2 years ago

This is actually science for my brother (elementary school 4th grade)

Biology

1 answer:

Usimov [2.4K]2 years ago

3 0

Answer:I BELIEVE IS b

Explanation:

Windy things are for power and the power comes from wind

You might be interested in

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

2 years ago

What are some things that have contributed to increased global temperatures due to higher levels of carbon dioxide?

Arisa [49]

There are many lines of evidence which clearly show that the atmospheric CO2increase is caused by humans. The clearest of these is simple accounting - humans are emitting CO2 at a rate twice as fast as the atmospheric increase (natural sinks are absorbing the other half). There is no question whatsoever that the CO2 increase is human-caused. This is settled science.

6 0

3 years ago

Please help ! Thank you

erma4kov [3.2K]

Answer:

Two Hydrogen one Oxygen

Explanation:

H2O H2 O

4 0

2 years ago

Read 2 more answers

A lipid that the body requires to make several critical substances but can’t synthesize on its own is _____.

Reptile [31]

The term that is being referred to in the given item above is essential lipid which other may more fondly refer to as essential fatty acids. These essential substances are mostly needed for the maintenance and integrity of the cellular membranes to be able to do their functions.

7 0

2 years ago

Amoeba Sisters

Kisachek [45]

Answer and Explanation

Due to technical problems, I was not able to fill the answer and explanations in the corresponding boxes. You will find them in the attached files.

Download pdf

5 0

2 years ago