The respiratory system of the birds
Answer:
By forming chromatin and in the condensed form of chromosomes
Explanation:
The human genome contains around 3 billion base pairs which are located in the nucleus of all cells. In order to accomodate such large genomic information, DNA is maximally supercoiled during mitosis and meiosis processes to form condensed structures called chromosomes. Humans have 23 pairs of chromosomes per somatic cell. The supercoiling process is assisted by a family of proteins called histones, which interact with DNA and regulate its conformation. The complex between DNA and histones within the nucleus is called chromatin. When chromatin is supercoiled it form chromosomes (in eukaryotic cells).
Some bacteria breathe with oxygen, but others use forms of respiration. But, bacteria don't breathe in the same way humans do.
Answer:
The correct option is <em>C) As cells become more numerous, the amount of required growth factors and nutrients per cell becomes insufficient to allow for cell growth.</em>
Explanation:
During the process of growth of a cell, it requires adequate amount of nutrients and growth factors to develop all the complex organelles and right growth size of the cell.
As the cell number increases, the nutrition required for these cells begins to deplete. This acts as a signal for the body to produce more cells. Once the nutrients and growth factors become abundant again the cells starts its process of growth again.
A. The assumption that the human body was similar to the anatomy of other animals
