Answer:
Meiosis I, the first meiotic division, begins with prophase I. During prophase I, the complex of DNA and protein known as chromatin condenses to form chromosomes. The pairs of replicated chromosomes are known as sister chromatids, and they remain joined at a central point called the centromere.
Explanation:
He (thomas edidson) obtained patents in such fields as telegraphy, phonography, electric
lighting and photography. In 1882, he designed the first hydroelectric
plant in Appleton, Wisconsin. In 1879, he and Sir Joseph Wilson Swan (in
England) simultaneously invented similar carbon filament incandescent
light bulbs. Edison improved upon Swan's design and by the end of 1880
had produced a 16-watt light bulb that would last for 1500 hours.
Answer:
scientific theory: an explanation of an aspect of the natural world that can be repeatedly tested and proved to be a success every time.
Answer:
muscles
ribs
lungs
bronchioles
alveoli
diffuses
leaves
exchange
Explanation:
Your diaphragm, and <u>muscles</u> between your <u>ribs</u>, make air move in and out of your <u>lungs</u>. It travels through the trachea, bronchi, and <u>bronchioles </u>to <u>alveoli</u>. In the alveoli, oxygen <u>diffuses</u> into the blood and carbon dioxide<u> leaves</u>. This is gas <u>exchange</u>.
<em>Air enters the lungs and leaves it as a result of the relaxation and contraction of the diaphragm and the muscles between the ribs. When both the muscles and the diaphragm relax, air enters from the trachea and travels through the bronchi and the bronchioles to the alveoli, where the oxygen in the air diffuses into the blood and carbon dioxide diffuse in the opposite direction. The entire process is known as gas exchange.</em>
Answer:
areas of high pressure to areas of low pressure
