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Paha777 [63]
3 years ago
14

A substance prepared from killed or weakened pathogens that is introduced into the body to stimulate an immune response is known

as: an antigen a macrophage a vaccine a migraine
Biology
1 answer:
snow_lady [41]3 years ago
3 0

The hepatitis B and the human papillomavirus (HPV) vaccines are made this way. The vaccine is composed of a protein that resides on the surface of the virus. This strategy can be used when an immune response to one part of the virus (or bacteria) is responsible for protection against disease.Jun 28, 2016

 


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What is the chemical reaction used to study enzyme activity in the lab (lactase breaking down lactose into its monomers). Know t
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Answer: The chemical reaction in this example is Called hydrolysis in the presence of Lactase

Here is a word equation for the hydrolysis of lactose:

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Explanation: The equation is called <hydro> + <lysis) of these terms refer to water and splitting respectively. So hydrolysis means splitting with water. Enzymes pull out a monomer by examining where the monomers are connected, and placing a water molecule in between them, resulting in the breakage of the bond between the monomers. Here are two picture to represent it.

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2. What are the limitations of the geocentric model that led to the creation of the heliocentric
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What are two significant types of pollution?
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The three major types of pollution are air pollution, water pollution, and land pollution. Sometimes, air pollution is visible. A person can see dark smoke pour from the exhaust pipes of large trucks or factories, for example. More often, however, air pollution is invisible.

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2 years ago
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Which statement accurately describes an aspect of human reproduction
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Human reproduction involves release of sperm (male gamete) and egg (female gamete) and their fusion to form zygote that develops into embryo. In females,  an egg is released each month as a part of a monthly cylce, called menstrual cycle. The  release of egg is termed as ovulation, in which tiny eggs are send into the fallopian tubes for fertilization.

Hence, the correct answer is 'a). an adult female usually releases an egg from an ovary each month.'

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