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WorksheetsUnit 1.3 Review: How do populations affect each other?
Total questions: 13
Worksheet time: 7mins
The following graph shows the biomass of a community after a forest fire, which process of succession is represented by this data?
Ecological succession
Gradual succession
Primary succession
Secondary succession
An autotroph is an organism that uses light to create its own food. Knowing this what would a Chemoautotroph use to produce its own food?
chemicals
light
other organisms
soil
pH is a chemical property of water that determines what type of organism lives there. What is a possible outcome of a change of pH occuring in an aquatic habitat?
Increase in photosynthesis from phytoplankton
Increase in the death rate of the organisms that live there
Increase in the birth rate of the organisms that live there.
Increase in consumption of plankton.
What abiotic factor would cause a decrease in a population for phytoplankton?
Increase in zooplankton
Decrease of sunlight
Increase in primary consumers
Increase in sunlight
The following figure shows the mass of plants over time after a volcanic eruption. What form of succession does this graph represent?
Secondary succession
Primary succession
Ecological succession
Gradual succession
The following image shows the reality of rising sea levels. What long term effect would a rise in sea level have on the coastal ecosystem?
Increase in biodiversity more available water
Decrease in biodiversity due to habitat loss.
Decrease in biodiversity due to inland predators having easier access to marine organisms.
Increase in biodiversity due to terrestrial organisms adapting to the rising sea levels.
Which of the following events cause primary succession to occur?
Volcanic eruption
landslide exposing bare rock
Hurricane
Forest fire
A unionid is a freshwater mussel, which statement best explains the change in the native unionid population?
The carrying capacity of the unionid was reached.
The introduction of the zebra mussel has decreased the amount of available resources for the Native unionid
The introduction of the zebra mussel has increased the amount of available resources for the native unionid
Zebra mussels are emigrating allowing for the native unionid population to shift.
The following graph shows the population of red squirrel over time. Which statement best represents the reason for the drop in the red squirrel population?
The increase in predators in the area
The introduction of the invasive grey squirrel
Increase in global warming
Loss of habitat due to urbanization
Based on the energy pyramid provided which trophic level would parasites fall under?
Producers
Primary consumers
Secondary consumers
Tertiary consumers
An astonishing 3.6 million acres have been scorched in Brazil's Amazon in the first half of 2023. What effect does this loss have on the ecosystem.
Loss of biodiversity will lead to the collapse of the ecosystem.
Loss of biodiversity will lead to the introduction of invasives, increasing biodiversity.
The forest will recover and biodiversity will be larger than before.
The loss of habitat will have no effect on biodiversity or ecosystem health.
What are the consequences to introducing an invasive species to a new habitat?
Compete with native species for resources
Disrupt natural habitats
Increase biodiversity
Can affect economy and health
Biodiversity is affected by which of the following?
Pollution
Habitat loss
Climate change
Invasive species
