HS Bio Test Prep 1

Multiple Choice

What is the producer?

• kelp

• otter

• bass

• mussel

• sea urchin

Multiple Choice

Which is a primary and secondary consumer?

• kelp

• otter

• bass

• mussel

• sea urchin

Multiple Select

Which organism(s) would benefit from a decrease in the sea urchin population?

• kelp

• otter

• bass

• mussel

• sea urchin

Multiple Choice

What is the producer?

• kelp

• otter

• bass

• mussel

• sea urchin

​Producers are the organisms that do photosynthesis. They are also the beginning of our food chain/web. In this food web, our producer is the KELP

Multiple Choice

Which is a primary and secondary consumer?

• kelp

• otter

• bass

• mussel

• sea urchin

A primary consumer eats the producer. Our primary consumers are the SEA CUCUMBER, MUSSEL, AND SEA URCHIN.

​A secondary consumer eats primary consumers. Our secondary consumers are CRAB, SEA URCHIN, SEA STAR, AND OTTER.

​The SEA URCHIN falls into both categories of primary and secondary consumer.

Multiple Select

Which organism(s) would benefit from a decrease in the sea urchin population?

• kelp

• otter

• bass

• mussel

• sea urchin

Organisms that are eaten by sea urchins will benefit from a decrease in the sea urchin population.

​Sea urchins eat: KELP and MUSSELS.

​These two species would benefit from a decrease in the sea urchin population.

Multiple Choice

Which prediction describes how the vegetation would most likely be affected if rabbit control measures were not implemented?

• sharp decrease in the population of Acacia would lead to an increase in other plants

• steady decrease in other vegetation would be followed by a slow decrease in Acacia plants

• slow decrease in acacia would lead to a steady increase in other vegetation

• a sharp decrease in the Acacia would be followed by a steady decrease in other vegetation

​Since rabbits prefer the Acacia plants, rabbits will eat those before eating other vegetation. You would see a sharp decrease in Acacia as the rabbit population grew, followed by a gradual decrease in other vegetation as the rabbits ran out of

Acacia

Multiple Choice

Foxes are a predator of rabbits and were introduced to Australia.

How would an increase in foxes most likely affect the rabbit population?

• more rabbits

• less rabbits

​Since foxes eat rabbits, an increase in the fox population would lead to a decrease in the rabbit population.

Multiple Choice

Foxes are a predator of rabbits and were introduced to Australia.

How would an increase in foxes most likely affect the vegetation?

• more vegetation

• less vegetation

​An increase in the fox population would lead to a decrease in the rabbit population, which would lead to an increase in the vegetation population

Multiple Select

Which two areas would have the best chance of recovery if rabbits were removed?

• L

• M

• N

• O

• P

​The areas that would benefit the most from a control measure would be areas where the rabbits currently are (O and M)

Multiple Choice

Scientists claim that wild rabbits in Australia have significantly impacted the Acacia populations.

Which additional evidence would best support the scientists' claim?

• years in which vegetation and mammals declined compared to the spread of the wild rabbits

• changes in rabbit populations in different types of ecosystems

• population data of mammals that also feed on Acacia seedlings

• population data of Acacia species before and after the release of wild rabbits into the habitat

​

​Since scientist is claiming that the rabbits are affecting the Acacia population, we would need to see the data for Acacia population before and after the introduction of the rabbit.

​

​If the Acacia population has decreased since the introduction of the rabbit, that evidence would support the scientist's claim.

Multiple Choice

Which statement best explains the wild rabbit population between 1955 and 1994 as different control measures were implemented?

• rabbits declined rapidly as MV and RHDV were effective

• rabbits declined slowly as MV and RHDV were somewhat effective

• rabbits declined sharply in response to MV but rose again as MV became less effective, only to decline again in response to RHDV

​Notice the decrease in the number of rabbits after the introduction of MV (1955) and RHDV (1994). These decreases are drastic. However, rabbit population increased again after MV, as it became less effective at controlling the population.

Multiple Choice

Is this a change in biotic or abiotic factors?

• biotic

• abiotic

Multiple Choice

What is true of this graph?

• fewer wolves leads to fewer elk

• more wolves leads to fewer elk

• More wolves leads to more elk

Multiple Choice

Is this a change in biotic or abiotic factors?

• biotic

• abiotic

Multiple Choice

What is true of this graph?

• Lake 1 has too many nutrients, which decreases oxygen supply

• Lake 2 has too many nutrients, which decreases oxygen supply

​Remember: No Biology assignments are due during the 2 weeks of test prep. However, you are encouraged to continue to work in your course.