Answer:
D. Sperm Cells
Explanation:
Primary sexual characteristics in organisms are defined as the external or internal genital parts present in organisms from birth only and Secondary sexual characteristics are the characteristics that found after puberty.
Primary Sexual Characteristics Of Males are testes, scrotum and penis which helps in the delivery of sperm cells. Testes, scrotum and penis are all present in humans or males from birth.
Hence, the correct answer is "D. Sperm Cells".
It gives the cell a net gain of 2 ATP molecules for each molecule of glucose that enters glycolysis.
The ability for an individual to survive and reproduce in its for specific environment. Any inherited characteristics that increases an organisms chance of survival. Individuals that are better suited to their environment, survive and reproduce most successfully.
Answer:
The black dogs are h o m ozygous with a dominant trait, but the brown dogs are h o m ozygous with a recessive trair. So if the dogs breed their offspring will all be black because black is dominant to brown, so therefore black is expressed.
Diagram is in the pic above
Blue box is black dog
Red box is brown dog
A is the allele for black
b is the allele for brown
A is dominant so b, so A is expressed
During prometaphase, the nuclear membrane disintegrates and the mitotic spindle gains access to the chromosomes. During this phase, a protein structure called the kinetochore is associated with the centromere on each sister chromatid.