<span>Cell death occurs.The way this makes Apoptosis an definition of this that cells has an turnover, an state where there are other cells that must have the information to induce the function of the organ.</span>
I believe it is at the age of 6. Virtually all human behavior is governed by the brain. Experience that produces a change in behavior produces a change in the brain. Increase in Brain size. 25% of adult weight by birth, 50% of adult weight by 6 months, 75% of adult weight by 2 years, 90% of adult weight by 4-6 years, 95 % of adult weight by 6-7 years.
This is true. The nervous system produces chemicals that affect our body at a rapid pace and the effects are usually short term and are designed for situations that are out of the ordinary. The endocrine system works slower and in the long run and there's not that much rapid effect that happens in stressful situations that the endocrine system solves or resolves. The hormones produced by the endocrine system are a constant that keeps being produced and they balance our body functions.
The correct answer is: b. The structure of DNA was helical
This photo known as Photo 51 is an X-ray diffraction image of crystallized DNA made by Rosalind Franklin. This photo helped Watson and Crick to define the final structure of DNA molecule. This diffraction pattern was essential for the construction of DNA model and it determined the helical nature of the double antiparallel helix strands.