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Aleksandr-060686 [28]
3 years ago
8

1. Explain why it can be useful for you and your doctors to know your family’s medical history, including information about pare

nts and grandparents. (5 points)
2. What are the possible effects of contaminated water on the health of an individual or community? Explain your answer in terms of what causes the contamination, the types of infectious agents involved in the related diseases, and how these diseases can spread. (5 points)

3. Describe two types of drugs and the negative impact the abuse of these drugs can have on a person’s health. (5 points)
Biology
1 answer:
notsponge [240]3 years ago
8 0

1. Knowing our family’s medical history can be useful for us and our doctors because it can help to check the possibility of occurrence of genetic disorders.  Genetic disorders are passed on through several generations. Diseases like hemophilia and color blindness are some examples.

2. Contaminated water can negatively affect the health of an individual as well as a community. Pathogens contained in contaminated water causes several diseases. Diseases like cholera and typhoid are examples of water-borne diseases.  

The bacterium that causes typhoid is Salmonella typhi and the pathogen that causes cholera is the bacterium Vibrio cholera. The consumption of water contaminated by the feces of a person infected with cholera cause the spreading of disease to a healthy person. Contaminated water and poor sanitation is the cause of typhoid spread as well.

3. Two types of drugs are stimulants and hallucinogens. Stimulants increase the alertness of the person who uses it and increases the heart rate, blood pumping rate and blood glucose levels. Cocaine is an example of stimulant drug.

Stimulant abuse can lead to anxiety, paranoia, depression etc. hallucinogens disconnect the link to the brain and users experience unstable and rapid emotions and have hallucinating visions.LSD is an example of hallucinogen. Hallucinogen abuse can cause cognition distortions, paranoia, anxiety etc.

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Cell phones emit radiofrequency energy, a form of non-ionizing electromagnetic radiation, which can be absorbed by tissues close to the phone. The amount of radiofrequency energy a person is exposed to depends on the frequency of the signal and the amount of time they spend on the phone. The Federal Communications Commission (FCC), the International Agency for Research on Cancer (IARC), and the American Cancer Society (ACS) all agree that more research is needed to determine the possible health effects of cell phone use. So far, there is no scientific evidence that proves that cell phone use causes cancer. Some studies have suggested a possible link between cell phone use and cancer, but more research is needed to confirm these results. The ACS does not recommend limiting cell phone use because the risk of cancer is still unknown.

Hope this helps!

Explanation:

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Answer:

4.Antagonistic muscles are muscles that have opposite effects to one another,As one relaxes, the other contracts.

5, This is to move bones in tandem to cause locomotion.As as one contracts, and the other relaxes, the bone is pulled and this shifts the position of the bone to cause locomotion.Note, a muscle cell usually pull in one direction.,

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1.This is a stimulant that increases the rate of excitability by increasing the synaptic connection through increase in amount neurotransmitters, at synaptic junctions

2,This accelerate the rate of ageing.Leading to premature aging.it ,may affect the heart efficiency and the entire cardiovascular system at the long run.

3. After a period of time this may cause liver damage by blocking blood flows to the liver.It may also lead to inhibitory effect of detoxification activities of the liver.This leads to hepatic failure.

7. A state of matter can only be compressed at  the gaseous state.it can not be compressed at solid because the inter molecular forces are very strong and the molecules of solids are well compact. Molecules of liquids are not free neither, although their molecular force are weak, But the molecules can not be compressed, since they lack random motion.

8. This is due to the lattice arrangement of water molecules in ice, resulting in lesser density of ice compare to that of water. The lower density of ice makes ice to float when it freezes, however, it is the higher lattice arrangement in ice which makes it expand, compare to other liquids which makes it less dense and therefore floats.

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what objects? because a dresser and a feather the answer would be dresser

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