True
You can’t skip any step; you need to do each step in order.
        
                    
             
        
        
        
Answer:
One offspring would have red leaves.
Explanation:
Given 
Yellow leaves are dominant and red leaves are recessive
Let us assume that the trait of Yellow color of a leaf be  represented by "Y"
and the trait of red color of a leaf be  represented by "y"
When two parent of genotype "Yy" are crossed with each other, the following offsprings are produced as shown in the punnet square below
 Y	y
Y	YY	Yy
y	Yy	yy
Total four offpsrings are produced out of which only one has red leave as red color is a recessive trait and it will appear only when both the allele in a cell are of red color. 
Thus, one offspring would have red leaves.
 
        
             
        
        
        
The correct answer is B. unicellular.
Dinoflagellates are unicellular or multicellular, producers, and autotrophs, and apple trees are multicellular, producers, and autotrophs. All plants have numerous cells in them, so they can never be unicellular. The remaining characteristics they share with less complex organisms such as dinoflagellates.
        
             
        
        
        
Answer:
A process of change in a population through genetic variation over time.