Biodiversity
Energy Transfer
The Carbon Cycle
Challenge
100

What is the correct definition of the term "biodiversity"? 

The variety of life in the world, particularly in a habitat or ecosystem. 

100

What is a trophic level? 

The trophic level of an organism is the position it occupies on the food web

100

What is the best definition of a solid? 

Atoms are tightly packed together (most dense). Solid objects hold their shape at room temperature

100

What is a scavenger? 

Organisms that consume carcasses (or the decomposing bodies) of animals. 

200

What is an endemic species? 

An organism that can only be found in one geographic area and does not naturally occur in another part of the world.

200

What is the difference between an autotroph and a heterotroph?

Autotrophs produce their own energy from the sun, heterotrophs consume other things to get the energy they need.

200

How are the two types of carbon, carbon dioxide (CO2) and methane (CH4), different from one-another?

CO2 is released through burning fossil fuels, where CH4 is release through energy production and agriculture. 

200

In the food web in your Unit 1 Outline, what is the tropic level and diet of the orca?

The orca is a quaternary consumer and is a carnivore. 

300

Name one adaptation that an organism living in the San Francisco Bay estuary ecosystem uses to deal with their salty environment.

Marine birds having salt glands in their eyes, succulent plants holding water, pickleweed and other plants constraining salt to their top leaves till they fall off, fish having special proteins for salt regulation, tasting the salt water, etc.)

300

What is the difference between a detritivore and a decomposer?

Detritivores eat dead plant matter, decomposers eat all dead matter.

300

How are photosynthesis and cellular respiration related to one another?

They are inversely related to one another.

300

Why are biodiversity hotspots an important scientific tool?

Biodiversity hotspots show us how healthy our planet is when undergoing environmental change and pressure. They’re representatives for endangered areas on the plant. (From the video/notes: They act as a blood pressure cuff to determine the health of the world!)

400

What is a biodiversity hotspot, and what are the two requirements to determine an area as such?

A biogeographic region with significant levels of biodiversity that is threatened by human habitation that needs 1500 endemic species of plants and more than 70% habitat loss.

400

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

A food chain is a hierarchical series of organisms that each depend on the next as a food source.

A food web is the natural interconnection of food chains. A graphical representation of what-eats-what in an ecological community.

400

What organisms do cellular respiration? Name three. 

Animals, humans, fungi. 

400

How did the Bird Feeding Strategies Lab showcase biodiversity in estuary ecosystems?

The Bird Feeding Strategies Lab showcased the diverse beak shapes that each of the estuary birds had to help them survive and feed in their environment. This lab showcased biodiversity by showing us how each of these birds had different beak shapes that are adapted to eat different prey items.

500

What's the difference between ecosystem stability and ecosystem resilience? 

Ecosystem Stability: The capability of a natural system to apply self-regulating mechanisms in order to return to a steady state after an outside disturbance.

Ecosystem Resilience: The ability of an ecosystem to maintain its normal patterns (ex. Nutrient cycling)  

500

In the food web in your Unit 1 Outline, what is the tropic level and diet of the cod?

The cod is the secondary consumer and is a carnivore. 

500

Which of the following are carbon consumers? (Plants, Bodies Of Water, Animals, Phytoplankton,, Humans, Fungi) 

Plants, bodies of water, phytoplankton. 

500

Please give Ms. S an example of genetic diversity. 

Answers may vary. 

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