Answer:
c
are animals typically characterized by their anus forming before their mouth during embryonic development.
 
        
                    
             
        
        
        
Answer:
Option). 4-5 days.
Explanation:
Morula is a 4-5 days stage of early embryonic development. It represents a solid ball, having 16 cells, known as blastomeres. In human embryo, differentiation begins with morula stage, along with cleavage to form trophoblast (an outer layers of cell) and inner cell mass. 
During development, trophoblast forms embryonic part of placenta and inner cell mass form respective structures of embryo.
Thus, the correct answer is option).4-5 days. 
 
        
                    
             
        
        
        
Answer:
It influences the development of adult sex
characteristics.
 
        
             
        
        
        
Answer:
The question lacks options, the options are:
a) varieties
b) phenotypes
c) genotypes
d) factors
e) alleles
The answer is B (phenotypes)
Explanation:
The phenotype of an organism refers to all observable traits it possesses. It refers to the physical characteristics of an organism as opposed to the content of its genes called genotype. Although, the traits an organism expresses is largely dependent on what is contained in its genome i.e. genotype determines phenotype.
Observable traits includes colour (yellow and green as mentioned in the question), height (tall or short), shape (round or wrinkled). An organism like plant will show or express a yellow colour (phenotype) when the yellow allele of the colour coding gene in its genetic makeup (genotype) is dominant.