What is the difference between a natural killer cell and a cytotoxic lymphocyte T?

Answers

Answer 1

Answer: Cytotoxic T cells recognize specfic antigens on the MHC sites to respond to an infection whereas NK cells are innate response and don't rely on antigen.

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One-fourth of adults in the United States are not active at all.

Answers

This is true.

According to the CDC 25% of American adults report no physical activity at all. This would be a fourth of the adults. The percentage is lower in adolescents making up around 14% that do not physical activity.

Yes, it is true that "only one-half of U.S. young people regularly participate in the vigorous physical activity". One-fourth report no vigorous physical activity. One-fourth of young people walk or bicycle nearly every day. About 16 percent of young people report no recent vigorous or light to moderate physical activity.

Given what you know about the human body, what do you think accounts for the high percentage of oxygen (65.0%)? Given what you know about the human body, what do you think accounts for the high percentage of oxygen (65.0%)? The human body is made up mainly of water, and there are two oxygen atoms in every water molecule. The human body is made up mainly of water, and there is one oxygen atom in every water molecule. The human body breathes in oxygen constantly, and because oxygen is a heavy element, it makes up a large percentage of body mass. The human body breathes in oxygen constantly, and oxygen in the blood and tissues makes up a large percentage of body mass.

Answers

What accounts for the high percentage of oxygen ( 65% ) in the human body is : ( B )The human body is made up mainly of water, and there is one oxygen atom in every water molecule

The percentage of the human body made up of water is approximately 60% which is more than half the body weight of a human and in every water molecule contained in the human body there is one atom of oxygen in it.

Therefore water been the major component of the human body accounts for the high percentage of oxygen present in the body in relation to other element present in the bodily fluids.

Hence we can conclude that What accounts for the high percentage of oxygen ( 65% ) in the human body is : The human body is made up mainly of water, and there is one oxygen atom in every water molecule.

Learn more about human body : brainly.com/question/20145541

The human body is mostly made up of water (H2O), and there is one oxygen atom in each molecule of water. Note that, although each water molecule also contains two hydrogen atoms, the atomic mass of hydrogen (about 1) is much smaller than the atomic mass of oxygen (about 16). Because of this, hydrogen contributes less to human body mass than oxygen.

Refusal skills to protect your dignity self-esteem and values true or false

Answers

This is true.

Refusal skills are very important and need to be reinforced. When you refuse to do something you don't want to do or don't believe in you are protecting your dignity, self esteem and values. No one should ever be forced to do anything against their will and we all need to learn to say no when we feel it is right to do so.

The answer is True. because you can help keep yourself protected from getting hurt by other people.

Lucas goes stand-up paddleboarding three days a week and paddles at a leisurely pace. His local surf shop is hosting a stand-up paddleboarding race at the end of next month. How can Lucas apply the SPORT principles to get in competition shape for the race?

Answers

There are several ways that Lucas can apply the SPORT principles to get into shape. When Lucas is training to get in shape for the competition, he can use SPORT to determine the frequency of his training. This doesn't include how many times he can train, but also how to space out his training. He can also use SPORT to determine the type of training and the intensity of his paddleboard training. SPORT training is more for a short term use, FITT is used in training for general sports such as strength training regimens. SPORT is based on specificity, reversibilty, overload, tedium, and progression.

Final answer:

Lucas can apply the SPORT principles to get in competition shape for the stand-up paddleboarding race by focusing on specificity, progression, overload, reversibility, and tedium.

Explanation:

To get in competition shape for the stand-up paddleboarding race, Lucas can apply the SPORT principles. SPORT is an acronym that stands for Specificity, Progression, Overload, Reversibility, and Tedium. Specificity means focusing on the specific skills and muscles needed for paddleboarding, such as core strength and balance. Progression involves gradually increasing the intensity and duration of workouts. Overload is about challenging the body beyond its comfort zone to promote fitness gains. Reversibility warns against stopping training and losing gains. Tedium suggests adding variety and fun to workouts to stay motivated.

Learn more about SPORT principles here:

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A group of people who are bonded together by a similar purpose beat a man in the park in order to steal his wallet. Which of the following acts of violence are they committing?A.
domestic violence
B.
neglect
C.
gang violence
D.
homicide

Answers

C is the correct answer. The people are commiting gang violence because they are bonded together in a group of multiple people, which constitutes a gang. Also, gangs often have a violent or disruptive aim or function, and the aim of this gang to beat a man and steal his wallet suggsests they are both violent and will commit criminal acts.

All those people against one guy would make it gang violence so C

Alcohol is a good source of nutrition.
a. True
b. False

Answers

Alcohol isn't a good source of nutrition.
Your answer is false, b.

False. It can cause type 2 diabetes.

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Which of these is most likely to help someone avoid alcohol?A. A negative role model B. Advertisements from alcohol companies C. A public service announcement D. Friends who use alcohol

Recovery sleep is necessary when sleep is put off for a while. TF