Answer: 15
Explanation: since it affects only 1 out of 20, you can divide 300 by 20 which equals 15
Answer:
b. increases; decrease
Explanation:
During inhalation the diaphragm contracts causing the expansion of the lung volume and chest wall. The lung pressure decreases and is lower than the atmospheric pressure causing air to be drawn through the nose/mouth.
In order to maintain a stable internal environment, or homeostasis, the body uses negative and positive feedback. In negative feedback, the body works to correct a deviation from a set point, it tries to get back to normal. Examples include body temperature, blood pressure, blood oxygen levels, and thirst sensation. In positive feedback, the body changes from the normal point and amplifies it. Examples include blood clot formation, lactation, contractions during childbirth, and fever.
Vaccinations cause organisms to develop active immunity. The immunity that occurs when an organism's immune system is actively producing antibodies against an encountered antigen is known as active immunity. Weakened antigens are given to the organism through vaccination, which causes the immune system to produce antibodies against it. This antigen exposure and antibody release results in lifetime immunity to that specific antigen. It takes the animal about two weeks to develop immunity to the vaccination after it is administered.
<h3>What is animal
Vaccination?</h3>
Animal vaccination is the vaccination of livestock, or wild animals. The practice is related to veterinary medicine. The first invented animal vaccine was developed in 1879 by Louis Pasteur against chicken his cholera. The production of such vaccines encounters problems related to the economic hardships faced by individuals, governments and companies. Animal vaccination is less regulated than human vaccination. Vaccines are divided into conventional vaccines and next-generation vaccines. Animal vaccines have proven to be the most cost-effective and sustainable method of controlling infectious diseases in animals. The animal vaccine industry was valued at $7 billion in 2017 and is projected to reach $9 billion by 2024
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