Answer:
The correct answer would be - complex eyes evolved in the gradual steps, each of which was fully functional and adaptive in improving visual acuity.
Explanation:
The natural selection of the complex traits such as the vertebrate eye (complex eye) are seems to be problematic, many biologist think that the complex eyes evolution is take place in gradual steps and each step of this evolution was adaptive and functional in improving the visual acuity.
The steps that were involved are like light sensitivity patch, a deepening hole or pit that help in sharp vision and many other random evolution steps.
Thus, the correct answer is- complex eyes evolved in the gradual steps, each step of this evolution was fully functional and adaptive that helps in improving visual acuity.
 
        
             
        
        
        
Answer:
make up genes and chromosomes
Explanation:
Darwin is known for his theory of evolution which explained how the organism evolved on the planet and the Mendel is known for his explanation that how the traits are passed on to the generation.
But both were unaware of this that the factors which control the traits are composed of DNA.
The DNA was discovered in 1869 in the nucleus of the white blood cells but it was not established that the genetic material is the DNA as it was discovered later in 1944.  The later studies on the DNA showed that the DNA forms the genes which control the trait and are present on the chromosomes.
Thus, makeup genes and chromosomes is correct.
 
        
             
        
        
        
Answer:
- Mother´s genotype: X⁻ X⁻  
- Father´s genotype: X⁺ Y 
- Son´s genotype: X⁻ Y
- Daughter´s genotype: X⁺X⁻
- The probability of having a color-blind son, X⁺Y, is 2/2 = 100% 
- The probability of having a color-blind daughter, X⁻X⁻,  is 0% 
- The probability of having a carrier daughter, X⁺X⁻, is 2/2 = 100% 
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
     
 
        
             
        
        
        
Osmosis is the answer. The molecules move