Honors Biology Unit 2.3 Flashcards
(16 cards)
What is R Selection?
Those that emphasize high growth rates, typically exploit less-crowded ecological niches, and produce many offspring.
What are those that emphasize high growth rates, typically exploit less-crowded ecological niches, and produce many offspring?
R Selected Species
What is K Selection
Produce offspring that each have a higher probability of survival to maturity.
What produces offspring that each have a higher probability of survival to maturity?
K Selected Species
What is the basic structure of a survivorship curve?
Plotted on the y-axis as a function of age or time on the x-axis.
What is plotted on the y-axis as a function of age or time on the x-axis?
Survivorship Curve
What is a type I Survivorship Curve?
Populations whose organisms tend to survive beyond their young and middle-ages and die when they become elderly.
What are populations whose organisms tend to survive beyond their young and middle-ages and die when they become elderly?
Type I Survivorship Curve
What is a Type II Survivorship Curve?
A roughly constant mortality rate for the species through its entire life.
What shows a roughly constant mortality rate for the species through its entire life?
Type II Survivorship Curve
What is a Type III Survivorship Curve?
Represent populations that have a high death rate among the young, but a relatively low death rate for those who survive into middle and old age.
What represents populations that have a high death rate among the young, but a relatively low death rate for those who survive into middle and old age?
Type III Survivorship Curve
What is a common R Selected species?
Insects
What is a common K Selected species?
Humans
What survivorship curve would a Human have?
Type I
What type of survivorship curve would a insect have?
Type III
