BIOL 350 Lecture Notes - Lecture 7: Jeremy Irons, Extinction Event

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emeraldwalrus65

12 Nov 2016

School

Queen's University

Department

Biology

Course

BIOL 350

Professor

Lonnie William Aarssen

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Document Summary

It is predicted that by the end of the century the population will rise to 10 billion people. Better access to birth control and education for women perhaps. Africa and other developing countries make up and increased share of the world population. When it will likely mean the decline other species, increased populations and thus an increased strain on the environment. There is a correlation between fertility rates and the economic state of a country. In more developed (cid:272)ou(cid:374)tries they are (cid:374)ot rea(cid:272)hi(cid:374)g the (cid:858)repla(cid:272)e(cid:373)e(cid:374)t rate(cid:859) . But death rate are going down and as a consequence the population growth rate stayed the same. Only recently has the birth rate gone down. Will the birth rate go down and more or less match the death rate so the population stops growing. A lot of immigration and emigration is occurring as a result of this disparity between developed and developing countries.

Related Questions

Provides substantial and thoughtful response, reflection â in-depth and detailed for the following post. Please don't copy past from the web

Tetanus; infamously known as lockjaw. This disease is found worldwide. Non-communicable diseases that will literally make your muscles tighten. Tetanus is not your typical disease. It is not spread person to person but through scraps, cuts, or any open wounds that break the skin. The incubation period for the disease is anywhere from 3-21 days depending on the wound and how contaminated the object was. The bacterium enters through these wounds and attacks the body affecting mostly the muscles. Most cases occur in people who are not vaccinated or do not maintain their boosters. Boosters are needed every ten years to prevent the disease. Although we cannot prevent injuries that cause the body harm we can prevent the disease from affecting our bodies through vaccination administration.

Tetanus cannot be tested but is diagnosed by physical examination conducted by a licensed physician. The diagnosis is based off physical examination and the reports from the patients about the symptoms they are experiencing. Some of those symptoms include; seizures, body aches, muscle spasms, jaw cramping, difficulty swallowing, headaches, fever, sweating, changes in blood pressure, and changes in their heart rate. Other complications can develop depending on a person's individual health and health history.

The best way to prevent Tetanus is by preventing it with the Tetanus vaccination and the boosters that are needed every ten years. This vaccination could be administered by a number of ways. There are four different types of combinations that include the Tetanus vaccination; Diphtherias & Tetanus (DT), Diphtherias, Tetanus, & Pertussis (DTaP), Tetanus & Diphtherias (Td), and Tetanus, Diphtherias, & Pertussis (Tdap).Tetanus is administered at six weeks old, ten weeks old, and fourteen weeks old. Boosters are given three different times during childhood to keep the children up to date on vaccinations that prevent the disease. People affected by Tetanus are not immune to getting Tetanus again like some other known diseases.

According to the CDC (Center for Disease Control) in their article about Tetanus they reported that Tetanus cases have been on the decline by more than 95% because of the increase in vaccinations being distributed worldwide. The CDC also reported that deaths in the United States are on the decline and have declined more than 99%. According to WHO (World Health Organization) in 2016 there are only 13, 502 reported cases globally. They also reported that 86% of the world is covered by the Tetanus vaccination. According to the World Health Organization there are currently 8 countries in the world that have 50% of their population affected by Tetanus. The other 50% are reported to have received their Tetanus vaccination. Majority of those countries are found in the middle of Africa. There are currently 27 countries in the world that 50-79% of their population who have received their vaccinations. There are also 130 countries that have over 90% of their population who have been vaccinated.

Tetanus is a vaccine preventable disease in which everyone can be affected by. Vaccinations are currently a controversial topic everywhere. Vaccinations play an important role in helping prevent disease like Tetanus.

References:

1. About Tetanus. (article). Retrieved September 1, 2017 from https://www.cdc.gov/tetanus/about/index.html

2. Tetanus. (article). Retrieved August 30, 2017 from www.who.int/immunization/diseases/tetanus/en/

silverraven404

Case Study

Skolnikland is in Eastern Africa, with a population of 30 million people. The country has a plains region, a hill region, and a region with high mountains. It has a number of ecosystems. The plains are dry for much of the year, there is some rainforest, and the rest of the country includes both hills and mountains. There are two seasons of heavy rainfall.

The citizens come from several ethnic groups that tend to live in their own regions and speak different languages. The ethnic groups largely follow one of three different religions. The large cities are mixed ethnically. One ethnic group is economically and socially very dominant. The people from this group live in the capital and most of the large cities. The national language is the language of this dominant ethnic group.

According to World Bank criteria, Skolnikland is among the poorest countries in the world. The economy has been growing at about 4% per year on average over the last decade, but the economy had very slow economic growth in the decades prior to that. The richest 10% of the population controls 80% of the national income.

About 80% of the people live in rural areas and 20% in urban areas. The number of people living in urban areas has been growing recently at an increasing pace. Most people earn their livelihood in agriculture but there is an increasing garment manufacturing industry in the two largest cities. There are also a number of mining industries. In addition, other export industries are beginning to grow, mostly focused on the export of commodities to China.

The total fertility rate is about 4.5 but it has been declining slowly over the last two decades, from over 6. There is an almost equal number of men and women in the population. Infant mortality is about 90 per 1,000 live births. Maternal mortality is about 500 per 100,000 live births. Thirty-five percent of the children are underweight for age.

The adult literacy rate is about 40%. The educational enrollment rate, especially for girls at the primary and secondary levels, has been growing slowly, but steadily. Most recently, this rate has been growing at an increasing pace and about 75% of the girls now attend school regularly, although many of them are of very low quality.

Only about 50% of citizens have access to safe water. Only about 30% have access to sanitary disposal of human waste.

HIV prevalence is 7% of the adult population. The number of new HIV cases annually has begun to plateau. About half of the people eligible for treatment for HIV are on treatment. Malaria is rampant in the plains.

Investments in the road system have been growing at a solid pace in the last decade and the use of private automobiles has begun recently to increase more rapidly.

Skolnikland has a pluralistic health system that is made up of public and private institutions, publicly financed providers, licensed private providers, unlicensed medical practitioners, and traditional healers. There is no health insurance, except for some free services for the poor in the few publicly financed hospitals, which the better off people do not attend. The health system is not very effective or efficient and is generally of low quality. The HIV, TB, and malaria programs are not effective or efficient and they are just beginning to adopt paradigms for services that follow global best practices.

QUESTION 11

If you were interested in investing in maternal and child health using a results-based financing scheme, which program is the most appropriate?

A. Invest in training more skilled birth attendants in a village.

B. A plan to give the local clinic in the village a grant after the clinic demonstrates that its efforts have led after two years to lower under-5 child mortality.

C.Provide all pregnant women in the village with a full course of antenatal vitamins.

QUESTION 12

In Skolnikland today, approximately what proportion of the burden of disease, measured in DALYs, is likely to be Group I-related?

A. 45%

B. 35%

C. 60%

QUESTION 13

In Skolnikland, life expectancy fell in the 1990s, which can be attributed to:

A. Malaria

B. HIV

C. Pneumonia

QUESTION 14

In Skolnikland, the cost for treating severe diarrhea in young children is $18 for community-based care and $20 for clinic-based care. The cure rate for community-based care is 60%. The cure rate for clinic-based care is 90%. Which approach is the most cost-effective?

A. Community-based care

B. Clinic-based care

C. They are equally cost-effective

QUESTION 15

In Skolnikland, what are likely to be three of the five leading causes of death of under-5 children, besides perinatal causes?

A. TB, diarrhea, pneumonia

B. Malaria, diarrhea, measles

C. Diarrhea, malaria, pneumonia

Question1.1. The cumulative amount ofresources an organism uses to survive is known as its ________.(Points : 1)

carbon footprint
ecologicalfootprint
biologicalfootprint
consumptionfootprint

Question2.2. The Conservation ReserveProgram pays farmers to ________. (Points : 1)

grow crops such as cornand beans
plant trees or grassesinstead of cultivating highly erodible cropland
install living plants aswindbreaks
allow animal populationsto naturally disperse over their property