Speciation Quiz

Play an AI-generated podcast conversation about this lesson

What does population ecology study?

Traits of organisms and how they contribute to a specie's life history

The study of life and natural systems

All of the organisms of a single species within a given geographic area (correct)

The interaction between biotic and abiotic factors in a geographic area

What is the difference between an ecosystem and a habitat?

Ecosystems include both biotic and abiotic components, while habitats are places suitable for particular organisms to live (correct)

Ecosystems are restricted by size, while habitats are not

Ecosystems are dynamic, while habitats are static

Habitats focus on traits of organisms, while ecosystems focus on interactions between organisms

What determines the niche of an animal within its ecosystem?

Feeding habits and other adaptations (correct)

Climate and pollution

Population density and numbers of individuals

Size and restrictions of the environment

What are density-dependent factors within an ecosystem?

Disease, predation, competition for resources Signup and view all the answers

What is the concern of biosphere ecology?

All living organisms on Earth and how they affect the planet Signup and view all the answers

Which type of speciation occurs when a population is reproductively isolated due to a geographical change?

Allopatric speciation Signup and view all the answers

What can lead to the formation of a new species if an isolated population has new environmental conditions and new traits emerge?

Environmental adaptation Signup and view all the answers

In which mechanism do the barriers preventing populations from mating become stronger, leading to the inability to produce fertile offspring?

Reinforcement Signup and view all the answers

What refers to the choices that individuals make to mate based on traits possessed by the other individual?

Sexual selection Signup and view all the answers

When do populations evolve to find different traits favorable, if separated geographically?

When selective pressures cause a divide between the organisms Signup and view all the answers

In a food web, what do producers represent?

Organisms that create their own food Signup and view all the answers

Where are primary consumers positioned in a food chain?

First trophic level Signup and view all the answers

What is the flow of energy through trophic levels generally like?

Upward from the lowest trophic level to the highest Signup and view all the answers

What is the main difference between a food chain and a food web?

Representation of interconnected interactions Signup and view all the answers

Which organisms are classified as secondary consumers in an ecosystem?

Carnivores and omnivores Signup and view all the answers

What do quaternary consumers primarily feed on in an ecosystem?

Other consumers Signup and view all the answers

What can be modeled using knowledge of food chains and food webs?

Flow of energy through ecosystems Signup and view all the answers

What is the percentage of energy transferred from one trophic level to the next?

10% Signup and view all the answers

What does biotic potential refer to?

The rate at which a species reproduces with ideal living conditions Signup and view all the answers

What establishes the carrying capacity of a species?

The environmental resistance Signup and view all the answers

What can be attributed to environmental resistance in a population?

The factors that limit the growth of a population Signup and view all the answers

What does the carrying capacity of an ecosystem represent?

The maximum number of living organisms that an environment can support Signup and view all the answers

What are examples of limiting factors in an ecosystem?

The availability of food, water, and shelter Signup and view all the answers

What does the sustainability of an ecosystem depend on?

The community of animals, plants, and other organisms that live in the same area Signup and view all the answers

What can reduce the maximum carrying capacity of an ecosystem?

Limiting factors such as the availability of food, water, and shelter Signup and view all the answers

Which factor may sustain a larger population?

Nutrition Signup and view all the answers

What type of symbiosis benefits one species without helping or harming the other?

Commensalism Signup and view all the answers

What is the study of the evolutionary development of animal behavior as a result of ecological pressure called?

Behavioral ecology Signup and view all the answers

What is the defense of resources within a territory known as?

Territoriality Signup and view all the answers

Which factor is unlikely to support large population sizes compared to temperate climates?

Extreme climates Signup and view all the answers

Which type of symbiosis benefits both organisms involved?

Mutualism Signup and view all the answers

What may hurt one or both of the populations competing for resources?

Competition Signup and view all the answers

What is the main reason animals defend a territory?

To secure limited resources Signup and view all the answers

In social groups, what is a potential drawback related to living in groups?

Higher risk of disease spread Signup and view all the answers

What concept is illustrated by the preference to donate a kidney to a closely related individual?

Kin selection Signup and view all the answers

What does social behavior such as altruism tend to increase?

Reproductive rates of individuals Signup and view all the answers

What influences the selection of mating partners and production of offspring?

Environmental pressure Signup and view all the answers

What is a direct reflection of the most beneficial traits in a specific environment?

Mating preferences Signup and view all the answers

What represents the strongest chance at survival in species that practice social child raising?

Social child raising Signup and view all the answers

What governs the actions of many individuals and tends to increase the survival and reproductive rates of individuals and groups?

Altruism and kin selection Signup and view all the answers

What does alpha diversity measure in an ecosystem?

The number of species Signup and view all the answers

What is genetic biodiversity primarily concerned with?

Genomes Signup and view all the answers

What is ecological biodiversity interested in?

The number of ecosystem types within a landscape Signup and view all the answers

What does gamma diversity consider?

The total number of species across all ecosystems Signup and view all the answers

What is the term 'biodiversity' often measured at?

Different levels and scales Signup and view all the answers

What do stable ecosystems with high diversity have an abundance of to fill ecological roles?

Species Signup and view all the answers

What is the primary concern of researchers studying genetic biodiversity?