Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 56, Problem 5TY
Summary Introduction
Introduction: A survivorship curve is a plot between the numbers of surviving individuals of the different age groups in a given population. Human activities and predation are seen to affect the survivorship curves.
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Students have asked these similar questions
At the beginning of a period of observation, those members of the population who are "capable of" developing a disease or condition are known as
a.
Population at risk
b.
Preexisting cases
c.
Prevalent cases
d.
Incident cases
Which of the following scenarios would be most likely to cause an outbreak of disease? Choose the best answer.
O a. Low population density, low transmission rate, short infectious period
O b. High population density, high transmission rate, long infectious period
c. High population densitym, low transmission rate, longinfectious period
O d. High population density, high transmission rate, short infectious period
O e. Low population density, high transmission rate, long infectious period
88)The life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here.
What type of survivorship does this species have?
x
nx
bx
0
678
0
1
102
0
2
31
0
3
19
10
4
14
12
5
12
12
6
10
14
7
10
10
8
8
11
9
7
10
Question 88 options:
Type I
Type II
Type III
Chapter 56 Solutions
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- Anoles are small lizards that live on shrubs, trees, and buildings. Many animals eat them. About 50% of the anoles in mainland populations die each year (i.e. each anole has a 50% chance of survival). The mainland anoles have which type of survivorship curve? Group of answer choices a. type I b. type II c. type A d. type IV e. type IIIarrow_forwardWhich of the following statements is true about measures of mortality/death? a. The crude mortality rate is a type of incidence rate b. Death certificates data are generally valid c. The case-fatality rate is calculated based on the entire population at risk d. All of the above e. None of the abovearrow_forward> A Moving to another question will save this response. Question 13 disease has only recently been detected in humans, or has recently expanded its range. A(n) O a. emerging O b. epidemic O C. pandemic O d. sporadic O e. plague Moving to another question will save this response. HUAWEI 17arrow_forward
- C. Destruction of the Yellowstone ecosystem D. Reduction in the coyote population, increasing the raptor population 37. Which of the following are things you can do to help preserve biodiversity? A. Volunteer with citizen science or other organizations like it B. Buy park passes and visit the parks respectfully C. Live more sustainably by making eco-friendly consumer choices D. All of the abovearrow_forwardSo far we have discussed changing environments affecting your species at risk. Changing environments can also have impacts on human health. Choose one environmental or societal change that has impacted human health. Explain the impacts and discuss any technological advances that can lessen the impact. I need the answer with references pleasearrow_forwardA Type I survivorship curve is O a. diagonal, such as that of lizards, small mammals, and large birds b.concave, such as marine animals that release eggs c. logarithmic, such as that of weeds d. S-shaped, such as that of smll birds e. convex, such as that of humansarrow_forward
- Which of the following is true? a. predation is a form of parasitism b. parasitism is a form of predation c. parasitism is detrimental to both organisms d. predation is always interspecificarrow_forward===================================Which of the following sentences is not true: a.Incidence rates describe the occurrence of new cases of a disease or condition in a community over a period of time relative to the size of the population at risk at the same time period. b.Mortality rates, or rates of illness, in public health are incidence and prevalence rates. c.A prevalence rate is the number of all cases of a specific disease or condition in a population at a given point in time relative to the population at the same point in time. Yazed sent Today at 3:04 AMOne factor causing another particular event are more complex than what exist in the epidemiological triangle as Causal relations. a.True. b.False. ======================= (Case finding, Screening, Health education); all of these are ways of Secondary prevention for COVID-19. a.True. b.False.arrow_forwardNEED ASAP THANKS Type of host parasite relationship that is beneficial to one partner and not disadvantageous to the other a. parasitism b. symbiosis c. commensalism d. mutualismarrow_forward
- Life Tables (b) Exercise: Survivorship curve for Zootoca vivipara (a) Three general types of survivorship curves 1000 Type I 1000 High survivorship 100 100 Турe I Steady survivorship 10- 10 8. Type II 7. 1 - 0.1+ 3. 4. High survivorship 2. Age tyears) Old 0.1 Young Age 1. Number of survivors (N,) Low survivorship Low survivorship Number of survivors (N,)arrow_forwardWhich of the following epidemiological study designs is the most useful to study incidence of an outcome or a disease? a. Ecological study b. Cross-sectional study c. Cohort study d. Descriptive studyarrow_forwardLook at the three types of survivorship curve in your textbook (Fig 3). Which of the survivorship curves is/are associated with organisms that have their highest mortality rates in the early stages of life? O a. Type I and II O b. Type I О с. Туре I O d. Type II O e. Type I and IIarrow_forward
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