Answer:
Surfactant increases airflow. It has this effect on airflow because it reduces resistance to lung inflation. Airflow increased as predicted.
Explanation:
Pulmonary surfactant is a complex mixture of lipids and proteins secreted by the Type II alveolar cells. The major component of surfactant, dipalmitoyl-phosphatidylcholine (DPPC), is an amphiphatic phospholipid. The main function of the pulmonary surfactant is to reduce the surface tension at the air/liquid interface in the lungs by forming lining layer between the aqueous airway liquid and the inspired air. prevents alveolar and airway collapse at end-expiration and thus allows cyclic ventilation of the lungs. It decreases surface tension in the alveoli making it easier for the alveoli to increase surface area for gas exchange. By lowering alveolar surface tension, pulmonary surfactant provides two important benefits:
(1) it increases pulmonary compliance, reducing the work of inflating the lungs; and
(2) it reduces the lungs’ tendency to recoil, so they do not collapse as readily.
Answer:
The Mayans were one of the indigenous societies in Mesoamerica.
Explanation:
The term civilization used to describe the Mayans society because of a complex society with its cultures and cities. The Mayan civilization centered in various parts of Central America and South America. Mayan relied on its geographical condition for survival as they farmed corn, squash, and beans.
The Mayan civilization was a theocracy because of the society that controlled by religious priests. The Mayans believed in gods controlling the world. The priests had the power to knew the gods' wishes. Therefore the priests held power in the Mayan society by making decisions.
Mayan developed hieroglyphics as a writing system. The hieroglyphic signs are pictorial, which are recognizable because of pictures, including people and animals, along with objects of daily life.
Answer:
answer ia Pok-A-Tok
Explanation:
it was a ball game that was played with a heavy rubber ball , its over 1000 years old
Answer:
Option C
Explanation:
First what is coherence, coherence is a quality of been logical and consistent , so a paragragh is said to be coherence when the sentences are connected together, the theme/ intuition from one sentence is carried to the next, so we can say they are connected to each other . we can basically define a coherence paragraph as a paragraph that has connected sentences together. Most coherence paragraphs has phases and words that the actual meaning they convey in each sentence can easily be understood by a reader and are connected together such that the understanding of the paragraph can be easily gotten.
So there fore option C best explain the meaning of a coherent paragraph.
Answer: FERRIS WHEEL
Explanation:
HISTORY: Before the word 'ferris wheel' came into existence, there has been several inventions similar to it for example, the 'pleasure wheel''.
Originally, Ferris wheel was designed and constructed by George Washington Gale Ferris Jr. in 1893 with a height of 264ft and it was intended to STAND THE 1,063FT EIFFEL TOWER. Eiffel tower was the centerpiece of the 1889 Paris Exposition.
Gale Ferris was a graduate of Rensselaer Polytechnic institute and a Pittsburgh, Pennsylvania.
He began his career in the railroad industry and then pursued an interest in bridge building. Ferris understood the growing need for structural steel and founded G.W.G. Ferris & Co. in Pittsburgh, a firm that tested and inspected metals for railroads and bridge builders.
