It sends an electrical impulse to make your heart beat. The job of a pacemaker is to artificially take over the role of your sinus node if it isn't working properly. Electrical impulses are sent by the pacemaker to stimulate your heart to contract and produce a heartbeat
Brains of alzheimer victims display plaque, which are BETA AMYLOID PROTEIN and tangles, which are TAU PROTEIN. Alzheimer is a neuro-degenerative disease in which brain cells are progressively destroyed, leading to memory loss and dementia.
"Meiosis II is not completed until after the egg cell makes contact with the sperm cell." This is false because, for both genders, meiosis splits into haploid cells. The end of Meiosis II would be when the four haploid cells are separated.
The answer is B.
These elements are among the most important elements in life. Most of these elements are also non-metals. Elements life sulfur and nitrogen combine with carbohydrates to form among acids rings like cysteine. Carbohydrates combine with phosphorus to form molecules such as the DNA backbone chain.
<h2>Evolutionary analysis of organisms</h2>
Explanation:
- Some organisms, which were characterized together determined to genetically very different .
- Using the analysis of RNA developed by Carl Woese, scientists are now able to classify the human evolution
- living things based on genetic information instead of expressed characteristics.
- Genetic information is more specific and can give clues as to the evolutionary ancestry of organisms.
- That is the reason adding of various domains in previous system of classification is allowed for a comparison of species genetic code
