58 public questions tagged with this topic.
Competition negatively affects both species as they compete for the same limited resources.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Parasitism and Commensalism
Keystone species are not necessarily the most abundant, but they play a crucial role in maintaining ecosystem structure.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Predation and Herbivory
Succession generally leads to a stable climax community, not an unstable one.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Predation and Herbivory
K-selected species produce fewer offspring, invest in parental care, and have longer lifespans.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Life History Variations and Population Interactions - Overview
Age structure refers to the relative proportion of individuals in different age groups within a population.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Life History Variations and Population Interactions - Overview
K-selected species invest in fewer offspring with high parental care, ensuring their survival.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Life History Variations and Population Interactions - Overview
The intrinsic rate of natural increase (r) measures how fast a population can grow under ideal conditions.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Life History Variations and Population Interactions - Overview
As population size nears carrying capacity (K), competition increases and growth slows due to limited resources.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Growth - Exponential and Logistic Models
When a population exceeds carrying capacity, resource limitations lead to increased mortality and decreased reproduction.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Growth - Exponential and Logistic Models
Immigration refers to the movement of individuals into a population, increasing its size.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Attributes - Birth Death Sex Ratio Age Distribution
Natality refers to the birth rate or the number of individuals born in a population per unit time.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Attributes - Birth Death Sex Ratio Age Distribution
Population density refers to the number of individuals in a given area or volume.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Attributes - Birth Death Sex Ratio Age Distribution
