Ecology Test 2023 Most Missed

Most missed Questions Ecology test 2022

Here are the questions that were the most missed on our most recent ecology test.

Multiple Choice

After a wheat field is cleared, wild grasses and weeds begin growing. This process is considered-

• Primary succession because of the apperence of pioneer species

• Primary succession because of the lack of small trees

• secondary succession because the soil is already present

• secondary succession because the field contains inorganic matter

Multiple Choice

Oil spills in the ocean affect marine food webs.  Animals that are initially affected by oil spills include sea otters, seabirds, and other organisms that spend most of their time on the ocean surface.

Based on the food web, how would a significant decrease in the sea otter population due to an oil spill most likely affect this ecosystem?

• The sea urchin population would increase causing the kelp population to decrease.

• The fish population would increase in response to the changes in the mussel population

• The mussel population would increase in response to the changes in the algae population

• The killer whale population would increase causing the fish population to decrease

Multiple Choice

Refer to the illustration above. Because the two species of barnacles attempt to use the same resources, they are

• Parasitic.

• in competition with each other.

• mutualistic

• symbiotic

Multiple Choice

Which statement best describes the differences in species diversity between an ecosystem beginning the process of primary succession and one beginning the process of secondary succession?

 

• Species diversity is much greater in the ecosystem undergoing primary succession because that ecosystem is experiencing a longer period with a lack of competition for space.

• No diffferences in species diversity exist because both ecosystems initially lack living organisms.

• Species diversity is much greater in the ecosystem undergoing primary succession because the lack of soil provides a greater area for organisms to claim niches.

• Species diversity is greater in the ecosystem undergoing secondary succession because the soil already contains seeds and spores of various species.

Multiple Choice

____     Below is an example of a segment of a natural biogeochemical cycle.  Which cycle is represented by this segment?

• Water

• Phosphate

• Nitrogen

• carbon

Multiple Choice

In an experiment, two plants are grown together for a time, and then separated.

Plant 2 is a parasite of Plant 1.

Which graph best predicts the growth of Plant 1 and Plant 2 during the experiment?

Multiple Choice

A student is studying the ecology of a playa lake, which forms after rainfall in a dry lake bed.  The table below lists the organisms that the student observed.

 

Which level of biological organization has the student described in the table?

• Population

• Community

• Ecosystem

• Biome