Evolution and Ecological Organization jordan2/21

What is natural selection and how does it contribute to evolution?

• Natural selection always results in the strongest organisms surviving

• Natural selection contributes to evolution by driving the accumulation of beneficial traits in a population, leading to the adaptation of organisms to their environment.

• Natural selection is a random process with no impact on evolution

• Natural selection only affects physical appearance, not genetic traits

Explain the concept of population dynamics and provide an example of a population change over time.

• Population dynamics is the study of how individuals within a population interact with each other

• An example of population change over time is the increase in the human population over the past century due to advancements in medicine and technology, leading to lower death rates and higher birth rates.

• An example of population change over time is the decrease in the number of trees in a forest due to deforestation

• The concept of population dynamics refers to the study of different species of animals in a specific area

Describe the different types of community interactions and provide an example of each.

• Competition - Lions and hyenas competing for the same prey. Predation - A lion hunting and consuming a zebra. Mutualism - Bees pollinating flowers and receiving nectar in return. Commensalism - Barnacles attaching to a whale and benefiting from the whale's movement. Parasitism - Ticks feeding on a dog's blood and harming the dog in the process.

• Parasitism - A lion and a zebra forming a mutually beneficial relationship.

• Predation - A lion and a zebra peacefully coexisting in the same habitat.

• Symbiosis - A lion and a zebra living together peacefully.

What are the different levels of ecological organization within an ecosystem?

• family, society, nation, continent, planet

• cell, tissue, organ, system, organism

• producer, consumer, decomposer, predator, prey

• individual organism, population, community, ecosystem, biome, and biosphere

How does ecosystem structure influence the distribution of organisms?

• Ecosystem structure influences the distribution of organisms by determining the color of the organisms

• Ecosystem structure influences the distribution of organisms by regulating the size of the organisms

• Ecosystem structure influences the distribution of organisms by controlling the weather patterns

• Ecosystem structure influences the distribution of organisms by determining the availability of resources and habitats.

Explain the concept of carrying capacity in relation to population dynamics.

• Carrying capacity is the maximum population size that an environment can sustain temporarily.

• Carrying capacity is the average population size that an environment can sustain indefinitely.

• Carrying capacity is the minimum population size that an environment can sustain indefinitely.

• Carrying capacity is the maximum population size that an environment can sustain indefinitely.

What are the major factors that contribute to the biodiversity of an ecosystem?

• Soil composition

• Predator-prey relationships

• Climate, habitat diversity, species interactions, and human impact

• Geographic location

Describe the process of speciation and its role in evolution.

• Speciation is the process of forming new and distinct species in the course of evolution.

• Speciation is the process of forming identical species in the course of evolution.

• Speciation is the process of forming new and distinct families in the course of evolution.

• Speciation is the process of forming new and distinct individuals in the course of evolution.

Discuss the impact of human activities on ecosystem structure and function.

• Human activities only have a positive impact on ecosystem structure and function

• Human activities can have a negative impact on ecosystem structure and function by disrupting the balance and reducing biodiversity.

• Human activities always improve ecosystem structure and function

• Human activities have no impact on ecosystem structure and function