Answer:
Plague is caused by Yersinia pestis. It is unicellular and placed in the bacteria domain.
Explanation:
Plague is caused by bacteria Yersinia pestis , a zoonotic bacteria usually found in the small mammals and their fleas. It is a gram-negative, nonmotile, rod-shaped, coccobacillus bacteria, with no spores. It is a facultative anaerobic organism that can infect humans via the Oriental rat flea.Y. pestis was discovered in 1894 by Alexandre Yersin, a Swiss/French physician and bacteriologist from the Pasteur Institute, during an epidemic of the plague in Hong Kong. Yersin was a member of the Pasteur school of thought. Kitasato Shibasaburō, a German-trained Japanese bacteriologist who practised Koch's methodology, was also engaged at the time in finding the causative agent of the plague. However, Yersin actually linked plague with Y. pestis. named Pasteurella pestis in the past, the organism was renamed Yersinia pestis in 1944.
Answer:
1. The National FFA Organization is built around Agricultural education.
2. The National Officers from California from 1928 -2020 are:
- Arthur Ketterlin 1928-29
- Lex Murray 1937-38
- Joseph E. Giacomini 1941-42
- <em>Robert Bowman President 1943-44</em>
- Eugene E. Starkey 1945-46
- Robert L. Smith 1950-51
- Jerry Diefenderfer 1962-63
- Joe Martinez 1968-69
- Dan Dooley 1970-71
- Peter Giacomini 1974-75
- Phil Benson 1979-80
- <em>Jan Eberly President 1982-83</em>
- Michael Gayaldo 1984-85
- Louie Brown 1991-92
- Kevin White Secretary 1992-93
- Travis D. Hagen Secretary 1994-95
- James Garner 1998-99
- Angela Browning 2000-01
- Dane White President 2001-02
- Tim Hammerich President 2002-03
- Beau Williamson President 2006-07
- Nessie Early Secretary 2008-09
- Levy Randolph President 2009-10
- Lindsey Anderson 2012-13
- Breanna Holbert President 2017-18
- Luke O’Leary President 2018-19
Question options:
1. Homeostasis
2. Digestion
3. Embryology
4. Cellular respiration
Answer:
<u>1. Homeostasis</u>
Explanation:
Sugar level in humans is regulated by "Insulin" and "glucagon" hormones that are secreted by the pancreas. Both hormones work in a balanced way to regulate the blood sugar level within a specific range if the sugar levels spike or drop.
Together,<u> </u><em><u>insulin and glucagon help maintain a state known as homeostasis</u></em><em>.</em> By definition, homeostasis is the maintenance of the internal environment of cell/body with respect to the external environment. Thus, homeostasis maintains a relatively stable state that persists despite changes in the world outside.<u> When blood sugar is too high, the pancreas secretes more insulin which acts to trigger breakdown of sugar thus reducing its level. By contrast, when blood sugar levels drop, the pancreas releases glucagon to allow conversion of macromolecules to simple sugars and raise its level.</u>
