1.b
2.d
3.a
this is the answer to your qeustion.
        
             
        
        
        
Answer:
The development of sharper visual acuity.
Explanation:
 At one week after birth, they can see red, orange, yellow and green. However, babies see red as the first primary color.
Many advances in vision development take place in months two and three. Infants develop sharper visual acuity during this period, and their eyes are beginning to move better as a team. A child should be following moving objects at this stage and starting to reach for things he sees. 
 
        
             
        
        
        
Mammals are adapted to live in land, air, and water, so the answer is D, all of the above.
        
             
        
        
        
Answer:
Four
Explanation:
Let the allele for black fur be B (the alternate will be b), the allele for active behavior be A (the alternate will be a), and the allele for light eyes be L (the alternate will be l).
<em>Heterozygous dominant for black fur = Bb</em>
<em>Heterozygous dominant for active behavior = Aa</em>
<em>Homozygous recessive for light eyes = ll</em>
Hence, the genotype for a male that is heterozygous for the dominant traits of black fur and active behavior but is homozygous recessive for light eyes will be BbAall.
Bb   Aa   ll
Possible Gametes
<em>BAl, Bal, bAl, and bal</em>
Therefore, the number of different types of gametes produced by the male mouse is four.