Invasive Species
Trophic levels
Symbiosis and Animal adaptations
Biomagnification
Nitrogen cycle
100

What word describes a species that is not native to an ecosystem and causes harm?

What is invasive species?

100

What is the first trophic level in a food chain?

What is the producer level?

100

What term describes a close relationship between two species where both benefit?

What is mutualism?

100

What term describes the increase in concentration of toxins as they move up trophic levels in a food chain?

What is biomagnification?

100

This bacteria in the soil or root nodules of legumes converts nitrogen gas into ammonia, a process called nitrogen fixation.

Question: What are nitrogen-fixing bacteria?

200

What invasive species is known for harming crops and spreading rapidly in the US?

What is the Asian longhorned beetle?

200

Which organisms are classified as secondary consumers in a food web?

What are carnivores?

200

A clownfish living in a sea anemone is an example of which type of symbiosis?

What is mutualism?

200

Which pollutant is most commonly known for biomagnification in aquatic food webs?

What is mercury?

200

This process involves bacteria converting ammonia into nitrites and then into nitrates, making nitrogen available for plant uptake

What is nitrification?

300

What invasive species in the Great Lakes has caused massive disruptions to local fish populations?

What is a zebra mussel?

300

What percent of energy is typically passed from one trophic level to the next in an ecosystem?

What is 10%?

300

What type of symbiotic relationship benefits one species but harms the other?

What is parasitism?

300

How does biomagnification affect top predators in an ecosystem?

What is it causes higher concentrations of toxins in their bodies?

300

This process, carried out by denitrifying bacteria, returns nitrogen to the atmosphere by converting nitrates back into nitrogen gas

What is denitrification?

400

What effect can invasive species have on native species?

What is the competition for resources, predation, or disease transmission?

400

What is the process of converting solar energy into chemical energy in plants is called what?

What is photosynthesis?

400

An example of a symbiotic relationship where one organism benefits and the other is neither helped nor harmed is called what?

What is commensalism?

400

Which species is most vulnerable to the effects of biomagnification?

What are apex predators?

400

This compound is formed when plants absorb nitrates and use them to create amino acids and proteins, which are then consumed by animals.


What is organic nitrogen?

500

The introduction of which invasive species led for the decline of native plants in hawaii?

What is a mongoose?

500

A hawk eating a snake that ate a mouse is an example of what type of feeding relationship?

What is a food chain?

500

A tapeworm living in the intestines of a mammal is an example of what type of relationship?

Answer: What is parasitism?

500

This type of organism is most affected by biomagnification, as they are at the top of the food chain and consume large amounts of contaminated prey.

What are top predators?

500

This form of nitrogen is most commonly found in the atmosphere, making up about 78% of it, but is not directly usable by plants.

What is nitrogen gas (N₂)?