Answer:
A ) DNA screening 
Explanation:
mutations changes up your DNA
 
        
             
        
        
        
Answer:
An arrangement of all the chromosomes of a diploid cell is called a kayrotype 
 
        
             
        
        
        
I think the second option is the best (by making the ramps height and length equal) because the first option will require more pushing, the third option will only make the ramp lighter which could cause it to not stay in place, the last option would make it harder to push the boxes up because the rubber will make it harder to slide the boxes up. I hope this helps:)
        
             
        
        
        
<h2>J-shaped growth curve</h2>
Explanation:
- J- shaped growth curve A curve on a graph that records the circumstance wherein, in another condition, the population thickness of a living being increments quickly in an exponential or logarithmic structure, yet then stops unexpectedly as ecological opposition (for example regularity) or some other factor (for example the finish of the reproducing stage) unexpectedly gets compelling. 
- Population numbers regularly show extraordinary variance, giving the trademark 'blast and bust' patterns of certain bugs, or the ones seen in algal sprouts. 
- This kind of population development is named 'thickness autonomous' as the guideline of development rate isn't attached to the population thickness until the last accident
 
        
        
        
Answer:
a plant hormone which promotes leaf detachment, induces seed and bud dormancy, and inhibits germination.