Multiple Choice
Which of the following is an example of semelparity?
724
views
2
rank
50. Population Ecology
Life History
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes how survivorship curves illustrate different reproductive strategies?
A
Type I curves show high mortality in late life, Type II curves show high mortality in early life, and Type III curves show constant mortality.
B
Type I curves show high survival rates in early life, Type II curves show constant mortality, and Type III curves show high mortality in early life.
C
Type I curves show constant mortality, Type II curves show high survival rates in early life, and Type III curves show high mortality in late life.
D
Type I curves show high mortality in early life, Type II curves show high survival rates in late life, and Type III curves show constant mortality.
Verified step by step guidance1
Understand the concept of survivorship curves, which are graphical representations of the number of individuals surviving at each age for a given species or group. They help illustrate different reproductive strategies.
Identify the three types of survivorship curves: Type I, Type II, and Type III. Each type represents a different pattern of survival and mortality.
Type I curves are characterized by high survival rates during early and middle life, followed by a high mortality rate in older age. This is typical of species that invest heavily in offspring care, such as humans.
Type II curves show a constant mortality rate throughout the life span. This means that the chance of dying is roughly the same at any age. Examples include some birds and reptiles.
Type III curves are marked by high mortality rates in early life, with few individuals surviving to adulthood. This is common in species that produce many offspring but provide little parental care, such as many fish and plants.
Related Videos
Related Practice
