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LiRa [457]
3 years ago
13

A group of mice becomes separated by the formation of a river. Over time, the northern mice became smaller and whiter, while the

southern mice became larger and browner. This is an example of:
Question 5 options:

Geographic isolation


Homology


Industrial mechanism


Genetic isolation
Biology
1 answer:
drek231 [11]3 years ago
6 0
Geographic Isolation Because i had bio last year an i remember that Exact Question 
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Help please bc I don't really know so yea
iren2701 [21]
I'd say D cause ice is kinda more likely to do the job
5 0
3 years ago
Iron reacts with atmospheric oxygen to form iron oxide or ferric oxide. Look at the chemical equation for this reaction: Fe + O2
Ber [7]

ANSWER

The correct answer is A

<u>EXPLANATION</u>

From the equation Fe + O_2 \rightarrow Fe_2O_3


<u>L.H.S.</u>               


Fe = 1                        

O  =2      

                 

<u> R.H.S</u>

Fe =2


O  =3

Now, let try to balance the oxygen atoms first,

To do this, we know the Least Common Multiples of 2 and 3 is 6


To get 6 atoms of oxygen at L.H.S  multiply 2 by 3 and on the R.H.S, multiply 3 by 2



L.H.S.                        

O=2\times3=6      


R.H.S

O=3\times2=6  


This means that, 3 should be in front of O_2 at the L.H.S and 2 should come before Fe_2O_3 in the R.H.S of the equation


Now, we have


L.H.S.                        


Fe = 1                          

O  =  6                        

<u>R.H.S</u>

Fe =4

O  =6

The equation is still not balanced since Fe is not balance

 

The Least Common Multiple of  1 and 4 is 4

Which means that we need to multiply 1 by 4 at the L.H.S and 4 by 1 at the R.H.S



L.H.S.                        

Fe=1\times4=4      


R.H.S

Fe=4\times1=4  


We now, have



<u>L.H.S.   </u>                    

Fe= 4                          

O=6                        


<u>R.H.S</u>

Fe =4

O=6

Hence the balanced equation is

4Fe +3O_2\rightarrow 2Fe_2O_3




5 0
3 years ago
Read 2 more answers
8. which statement best explains why compounds have different properties than the elements that form them?
Anon25 [30]
Since options aren't given the responder will display the answer.

They are bonded by atoms.

The atoms in a compound are held together by a chemical bond. The chemical bonds can be either covalent bonds or ionic bonds. Both the bonds are considered very strong bonds. These bonds are mainly formed by sharing of electrons or in the case when one of the elements making the compound donates electron to the other element. The nucleus of each atom attracts to form a strong bond. This property of attraction between the nucleus of the atoms actually helps in forming the chemical bonds.<span>
</span>
3 0
3 years ago
In general more complex animals are
Hoochie [10]
In general, more complex animals are More likely to likely have a digestive tract than to have a gastrovascular cavity

Since it is really unlikely to have a set of digestive system if you are only a single cell organism
7 0
3 years ago
During secondary succession, new life begins to grow in an area that was previously lifeless.
postnew [5]

Answer:

False

Explanation:

Primary succession would be the answer.

4 0
3 years ago
Read 2 more answers
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