Ecology End-of-Year Review Challenge

This video tutorial covers the study of ecology, focusing on the interactions between organisms and their environment. It explains key ecological concepts such as species, populations, communities, and ecosystems, and discusses the importance of biotic and abiotic factors. The tutorial also explores factors affecting ecosystems, including keystone species and limiting factors, and explains ecological succession. Energy flow through ecosystems is detailed, along with biogeochemical cycles like carbon, nitrogen, and phosphorus. The impact of population dynamics and human activities on ecosystems is also examined, highlighting symbiotic relationships and predation.

What is the study of interactions between organisms and their environment called?

• Ecology

• Chemistry

• Geology

• Biology

Which term describes a group of organisms of the same species living in the same place at the same time?

• Biome

• Population

• Ecosystem

• Community

What are the non-living components of an ecosystem called?

• Consumers

• Abiotic factors

• Biotic factors

• Producers

What is the term for the maximum number of organisms that an ecosystem can support?

• Trophic level

• Limiting factor

• Carrying capacity

• Keystone species

Which species is considered a keystone species in Yellowstone National Park?

• Wolf

• Deer

• Bear

• Elk

What is the first stage of ecological succession called when it starts on bare rock?

• Secondary succession

• Primary succession

• Intermediate species

• Climax community

What is the ultimate source of energy for most ecosystems?

• Wind

• Sun

• Soil

• Water

In a trophic pyramid, what percentage of energy is transferred from one level to the next?

• 10%

• 5%

• 20%

• 50%

Which type of organism breaks down dead matter and waste, releasing simple inorganic molecules back into the environment?

• Decomposers

• Producers

• Herbivores

• Consumers

What type of symbiotic relationship benefits one organism while the other is neither helped nor harmed?

• Parasitism

• Predation

• Commensalism

• Mutualism