A- non-native species can have positive and negative affects
        
                    
             
        
        
        
Answer:
they both have nucleus, cytoplasm, cell membrane and mitochondria
Explanation:
 
        
                    
             
        
        
        
<span>a) the active site is a site on the enzyme molecule where specific substrate molecules bind.
because an active site is </span><span>a region on an enzyme that binds to a protein or other substance during a reaction.
hope this helps :) brainliest? i really need one! </span>
        
                    
             
        
        
        
Answer:
It seems that a reciprocal translocation is going on. 
Explanation:
A translocation occurs when a chromosomal fragment changes its location in the same chromosome from the original to a new one. Or when it leaves the chromosome to re-locate in a new different chromosome. 
According to this, there are different types of translocations:
- Intrachromosomal translocations: 
- Intra-radial: the change in position occurs in the same arm of the chromosome. For instance, 123.456789 → 123.478569
- Extra-radial: The change in position occurs from one arm to the other of the same chromosome. For instance, 123.456789 → 15623.4789
- Extrachromosomal translocations:
- Transposition: not reciprocal interchange. The fragment leaves a chromosome to re-locate in another chromosome. The other chromosome does not send any fragment to the first one. 
- Reciprocal translocation: There is a reciprocal interchange. A fragment of chromosome A goes to B, and a fragment of chromosome B goes to A. 
Reciprocal translocations might be:
- Fraternal: the interchange occurs among homologous chromosomes
- External: the interchange occurs among non-homologous chromosomes
Reciprocal translocations are easily recognized during meiosis because an association between four chromosomes can be observed.  This association is a quadrivalent structure. 
During metaphase 1, the centromeres involved in the quadrivalent originate centromeric co-orientation or disjunction. 
 
        
             
        
        
        
The correct answer is A, a good hypothesis does not have to be complex