Ecosystems

What are the different levels of organization in ecosystems?

• species, habitat, niche, ecosystem, biome, and biosphere

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

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

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

How do organisms interact with each other in ecosystems?

• Competition, predation, mutualism, and symbiosis.

• Commensalism, parasitism, and cooperation.

• Photosynthesis, respiration, and reproduction.

• Migration, hibernation, and adaptation.

Explain the concept of energy flow in ecosystems.

• Energy flow in ecosystems refers to the transfer of energy from one organism to another through food chains and food webs.

• Energy flow in ecosystems refers to the transfer of energy from one organism to another through reproduction.

• Energy flow in ecosystems refers to the transfer of energy from the sun to plants through photosynthesis.

• Energy flow in ecosystems refers to the transfer of matter from one organism to another through food chains and food webs.

What is nutrient cycling and why is it important in ecosystems?

• Nutrient cycling is the process of recycling and reusing nutrients in an ecosystem.

• Nutrient cycling is the process of converting nutrients into energy in an ecosystem.

• Nutrient cycling is the process of introducing new nutrients into an ecosystem.

• Nutrient cycling is the process of removing nutrients from an ecosystem.

Describe the population dynamics in ecosystems.

• Population dynamics in ecosystems refers to the changes in the size and composition of populations over time.

• Population dynamics in ecosystems refers to the physical characteristics of a population.

• Population dynamics in ecosystems refers to the study of individual organisms within a population.

• Population dynamics in ecosystems refers to the interactions between different species within a population.

Which level of organization in ecosystems includes all living and non-living components?

• biosphere

• community

• habitat

• ecosystem

Give an example of a predator-prey interaction in ecosystems.

• Eagles and rabbits

• Wolves and deer

• Sharks and fish

• Lions and zebras

What is the primary source of energy in most ecosystems?

• sun

• soil

• water

• wind

How do nutrients move through the different components of an ecosystem?

• Nutrients move through the different components of an ecosystem through photosynthesis.

• Nutrients move through the different components of an ecosystem through predation.

• Nutrients move through the different components of an ecosystem through evaporation.

• Nutrients move through the different components of an ecosystem through nutrient cycling.

What factors can influence the population size in ecosystems?

• availability of resources, predation, competition, disease, and environmental conditions

• migration patterns, genetic diversity, symbiotic relationships, and climate change

• pollution, natural disasters, invasive species, and birth rate

• habitat destruction, human activities, food availability, and reproductive rate