Ecological Adaptations and Population Dynamics

The video explores the complexity of ecological studies, starting from individual organisms to the entire biosphere. It delves into organism-level ecology, focusing on life cycles and adaptations, and then moves to population ecology, examining population size, density, and distribution. The video also discusses population growth, including geometric and exponential growth, and introduces concepts like carrying capacity and top-down and bottom-up control in ecosystems.

What is the primary focus of an ecologist studying at the organism level?

• Population density

• The entire biosphere

• Community interactions

• Individual organism's life history

Which of the following is an example of a morphological adaptation?

• Migration of birds

• Temperature regulation

• Fennec fox's large ears

• Hibernation of bears

What type of adaptation involves internal processes to maintain homeostasis?

• Physiological

• Behavioral

• Instinctive

• Morphological

Which behavior is considered instinctive?

• Geese migrating south

• Habituation to stimuli

• Crows using tools

• Learning through play

What is the study of population ecology primarily concerned with?

• Population size and structure

• Ecosystem energy flow

• Community interactions

• Individual organism adaptations

What is a population's geographic range?

• The number of individuals in a population

• The density of a population

• The genetic diversity within a population

• The area where a species can survive

Which growth model assumes unlimited resources?

• Logistic growth

• Carrying capacity

• Geometric growth

• Exponential growth

What is the carrying capacity of an environment?

• The maximum number of species in an ecosystem

• The number of individuals an environment can support

• The diversity of species in a habitat

• The rate of population growth

In which type of control do producers drive changes in population?

• Bottom-up control

• Top-down control

• Central control

• Sideways control

What happens to population growth as resources are depleted?

• It increases indefinitely

• It slows and eventually stops

• It shifts to geometric growth

• It continues to grow exponentially