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vampirchik [111]
3 years ago
6

Help please!!! due in an hour!

Biology
2 answers:
Eddi Din [679]3 years ago
5 0

Answer:

a microscope

Explanation:

u cant use the other instruments to find out

scZoUnD [109]3 years ago
5 0

Answer: A microscope

Explanation: The answer is c

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Which of the following best describes a adaptation brought about by natural selection
PtichkaEL [24]

Answer:

I'm not sure what the answers are but

Polar bears begin to eat goose eggs as a way to survive when seals, their usual prey, are not available.

Mountain goats restrict their range to higher altitudes because of warmer low-altitude temperatures.

Snowshoe hares change their fur from white to brown to match their warm summer habitats.

Early humans learn to make tools like flint arrows and knives to help them hunt more efficiently.

if these are your options then the answer is

C) Snowshoe hares change their fur from white to brown to match their warm summer habitats.

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3 years ago
What was the problem is Redi's experiment
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Answer: c.  Is spontaneous generation a valid explanation for maggots in meats?

Explanation:

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3 years ago
Which mutation occurs when one nucleotide base is replaced with another base?
Mama L [17]
I believe the answer to this is substitution <span />
3 0
3 years ago
Read 2 more answers
why must the symbol +- be written in front of the radical to write the inverse of the function f(x)=x^2?
oee [108]
Here is why:

When we solve for the inverse function (see the particular step below;  when we have:  " y² = x " ;

We take the "square root" of EACH SIDE of the equation; to isolate "y" as a single variable on one side of the equation;

→  √(y²) = √x ;

→ |y| = |√x| ;

y =   ± √x ; 

Because when we take the square root — or any "even root", for that matter—we have two solutions: of a variable, we have TWO SOLUTIONS:  a positive value; and a negative values;  
 
→  since:  1)  a "negative value"; multiplied by a "negative value" ;                       equals a "positive value" ;  
                 →  and as such:  a "negative value" ;
multiplied by that same "negative value" ;
           {that is:  a "negative value", "squared (i.e "raised to the power of "2"} ; ,
                 →  results in a positive value ; 
→ and since:  
                2)  a "postive value";  multiplied by a positive value" ;                       equals a "positive value" ;  
                 →  and as such:  a "positive value" ;
multiplied by that same "positive value" ; 
           {that is:  a "positive value", "squared (i.e "raised to the power of "2"} ; , 
                 →  results in a "positive value";
→ and since:
                3)  any given integer, in it "positive value", squared (i.e. raised to the power of "2");  results in a "positive value" ; 
→and since:  
               4)  that same aforementioned integer; in its "negative value" form, squared (i.e. raised to the power of "2"); results in that same aforementioned "positive value". 
________________________________________________________
Note the following:
________________________________________________________

"Given the function:  "f(x) = x² " ;   Find the "inverse function" .

Let "y" = f(x) " ; 

and write as:  " f(x) = y = x² " ;  

→  " y = x² " ; 

→ Now, rewrite the equation;  replacing the "y" with "x" ;
 and replacing the "x" with "y" ; 

→  " x = y² " ;  

Now, rewrite the question; isolating "y" as a single variable;  
   with no coefficient (save for the "implied coefficient of "1" ) ; 

→  " x = y² " ;  

↔  " y² = x ; 

Now, take  the square root of EACH SIDE of the equation; 
    to isolate "y" on one side of the equation; 

→ √(y²)  = √x ; 

→ |y| = |√x| ; 

→ y =  ± <span>√x .
</span>
Replace the "y" with " f ⁻¹(x)" ; to indicate that this the "inverse function" ; 

and write the "inverse function" :

→ " f ⁻¹(x) =  ± √x " ; 
__________________________________________________
3 0
3 years ago
The water in a full bathtub is at a temperature of 40℃. A cup of water is at a temperature of 90℃. Which mass of water most like
Darina [25.2K]

Answer:

90°of water in cup

Explanation:

Energy increase with an increase in temperature

7 0
3 years ago
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