WHAT IS LIFE LL W/ LAUNCHPAD
4th Edition
ISBN: 9781319231859
Author: PHELAN
Publisher: Macmillan Higher Education
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 16, Problem 7MC
Summary Introduction
Introduction:
Hazard factor is an external force that increases the risk of death in a population.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
“Prevalence” can be defined as:
a. The proportion of new cases of a disease that occurs in a population at risk over a set period of time.
b. The number of cases of disease in a population.
c. The number of new cases of a disease that occurs in a population annually.
d. The proportion of the total population that has a disease at one point in time.
e. The number of cases of a disease at the midpoint of any year.
In a cohort study, the ratio of the incidence rate of a disease in an exposed group to the incidence rate of the disease in a nonexposed group is the:
a.
Relative risk
b.
Risk difference
c.
Prevalence ratio
d.
Odds ratio
Table 3.5 shows the number of deaths by age group in the United States in 2002 from all causes and incidents (unintentional injuries). Examine the rates mentioned below. Determine ,what to call each one then use the data to measure it as seen in the table.
a. All-cause mortality rate for 25–34 year olds. Calculate the age-specific mortality rate.
b. All-cause mortality among males. Calculate the sex-specific mortality rate.
Chapter 16 Solutions
WHAT IS LIFE LL W/ LAUNCHPAD
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How do scientists use epidemiological transitions to understand how health has changed throughout human history? A. They can be used to describe long-term shifts and patterns observed in health and disease profiles of populations. B. They can be used to describe short-term shifts and patterns observed in health and disease profiles of populations. C. Epidemiological transitions cannot be used to understand how health has changed throughout human history. D. None of the abovearrow_forwardLarge numbers of microbes: (Select all that apply) a. contribute to population variability b. create statistical reliability c. contribute to population consistency d. give the same results in studies as smaller populationsarrow_forwardThe major disadvantage of crude rates is that: A. they may not allow for comparison of populations that differ in size. B. they do not permit comparison of populations that vary in composition. C. they are difficult to calculate from available data sources. D. all of the abovearrow_forward
- Which of the following would not be an example of density-deperident factors regulating population size? The number of possible territories for robins is limited; thus when population sizes are high, a lower proportion of individuals can produce offspring. A. O B. In conditions of overcrowding, some desert pupfish living in ponds will emigrate to other ponds if given the opportunity. C.Predation on mosquitofish is high, regardless of population size. D. In conditions of high density, mice are more susceptible to mortality from heat stress. E. In a habitat patch with a high density of muskrats, a disease spreads more rapidly and results in higher mortality.arrow_forward1.) Explain the relationship of population dynamics with resource use. 2.) How would you relate biological concepts of change and adaptation in living systems to social and cultural systems? Provide an example.arrow_forwardA population’s ecological footprint is measured in terms of: a how many resources the population uses. b how much land area is needed to support its lifestyle. c the amount of waste/pollution it produces. d the number of people who live there.arrow_forward
- Mortality refers to a. the number of cases of disease per unit of population occurring over a unit of time. b. the first occurrence of menstruation. c. the number of deaths attributable to a particular cause per unit of population over a unit of time. d. the statistical likelihood of a person dying from a particular cause. Studies indicate that humans were physically active in our evolutionary past. True Falsearrow_forwardWhat is the major difference between density-dependent and density-independent factors? A. Density-dependent factors are more harmful. B. Density-independent factors affect the population despite the density. C. Density-independent factors are more harmful.arrow_forwardWhich statement about environmental stochasticity is true? O A. Environmental stochasticity places grizzly bears in Yellowstone National Park at risk for extinction despite the average positive growth rate of this population. O B. There is no fundamental difference between environmental stochasticity and demographic stochasticity. O C. In a situation of environmental stochasticity, the underlying birth and death rates of individuals are constant across years. D. All of the above E. None of the abovearrow_forward
- Below is a table that shows the changes in a population of domesticated rabbits. What is the most likely explanation for why size of the rabbit population remained relatively constant from 1990-1992? Year 1986 1987 1988 1989 1990 1991 1992 Population 601 732 769 800 816 815 816 O a. The population suffered from a new disease O b. A new predator was introduced c. The rabbit's prey source was killed off due to hunting o d. The population reached its carrying capacityarrow_forwardEcologic fallacy refers to.... A. Ascribing the characteristics of a group to every individual in that group. B. Assessing exposure in large groups rather than in small groups. C. Examining correlations of exposure and outcomes rather than time trends. D. Assessing outcome in large groups rather than in many small groups. E. Failure to examine temporal relationships between exoosures and cuscorearrow_forwardexplain how the population would respond in the following scenarios. a. The snowy owls' environment has been warming slowly over the last 70 years. The forests do not stay as snow-covered throughout the year. The owls have a harder time hiding from their prey for a few months out of the year. There is a mutation that allows the owls' feathers to change to brown during the warmer months. c. The snowy owls' environment is warming up very quickly and going from very frigid temperatures to very warm. This change is happening so quickly that the snowy owls are too visible to their prey since there is less snow. They have started having a hard time finding food and many are starving. The warmth has also messed up their migration/breeding patterns.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Necrosis vs. Apoptosis: Cell Death; Author: AMBOSS: Medical Knowledge Distilled;https://www.youtube.com/watch?v=zFrBwGfOQs0;License: Standard Youtube License