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iragen [17]
3 years ago
6

What is the basic unit of matter? a. compound b. mixture c. solution d. atom

Biology
2 answers:
satela [25.4K]3 years ago
7 0
The correct answer is D.) Atom , 

Everything in the universe is made of atoms , and matter is too.

Anything that takes up space is usually considered matter.

___________________________________________________-

I really hope this helps you a lot.



Marrrta [24]3 years ago
3 0
D: atom
everything is made out of atoms
hope this helps!

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Help with this 4 i mark u as brainlist if u answer them correctly 20 points
vodka [1.7K]

Answer:

1. Decibels

2. whisper - 20-decibels, normal talking - 60 decibels, rock concert - 120 decibels

3. 10,000

4. A Jet plane

Explanation:

1. The unit refers to what specifically is being measured. If the graph was of heights, it could be metres, centimetres, feet, or inches, for example. In this case, the graph is of sound level. We can see beside the Y axis label "Sound Level" that the unit is decibels.

2. Take each individual sound source and look at how tall the bars are (purple rectangles). For each one, we can look across to the Y axis (left side) and see the corresponding sound level for each

3. We were told in the introduction to the question that for every 10 decibel increase, the sound increases by 10 times. So going from 10 -> 20 decibels represents a 10x increase, and 10-> 30 represents a 100x increase.  

To figure out the increase from whisper (20) to normal talking (60), take away 20 from 60 to see how many decibels difference there are between the two levels.

60-20 = 40

There is a 40 decibel increase. If 10 decibel difference = 10x and 20 decibel difference = 100x, then 30 = 1000x, and 40 = 10,000x (keep adding a 0 with every 10!)

4. We can see from the graph that the pain threshold is 120 decibels. The sound level that is greater than the pain threshold (meaning it would be painful) is the jet plane.

3 0
3 years ago
Which of the following is an example
fiasKO [112]

Answer:

it is b because rest are biotic and also cause it is the only biotic thing available

Explanation:

I know it is right

7 0
3 years ago
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Organisms with the ability to produce many offspring in a short period of time are considered ____.
Soloha48 [4]

Answer:

r-selected

Explanation:

I learned this in my biology not too long ago and (once you get the hang of it) biology is pretty easy

I hope you seen this as helpful <3

6 0
3 years ago
Do Prokaryotes have differentiated cells?<br><br><br>not high school, seventh grade
Slav-nsk [51]

Answer:

They are single celled organisms.

Explanation:

6 0
3 years ago
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