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WorksheetsBonus Opportunity
Total questions: 23
Worksheet time: 12mins
Abiotic factors that affect the growth of grass in a lawn include _______
bacteria and soil
earthworms and nutrients
moisture and minerals
fertilizer and decomposers
Which statement best describes the flow of energy, and the movement of chemical compounds in an ecosystem?
Energy flows into living organisms and remains there, while chemical compounds are transferred from organism to organisms.
Chemical compounds flow in one direction in a food chain and energy is produced.
Energy is transferred from organism to organism in a food chain and chemical compounds are recycled.
Energy flows out of living organisms and is lost, while chemical compounds remain permanently inside organisms.
Which is an abiotic change in an ecosystem?
Plant photosynthesis rates increase.
Fish species populations increase.
Aquatic predator survival rates increase.
Annual rainfall totals for an area increase.
The cycle most responsible for linking biogeochemical cycles is the:
Carbon cycle
Hydrologic cycle
Nitrogen cycle
Phosphorus cycle
Sulfur cycle
The nitrogen cycle is unique in that atmospheric nitrogen cannot be converted directly by organisms into usable nitrogen. What is necessary in order for atmospheric nitrogen to be converted to usable nitrogen by organisms?
Ammonification
Denitrifying bacteria
Nitrifying bacteria
Decomposition
Nitrogen fixation
The loss of energy in subsequent levels of a food web is due to which of the following?
First Law of Thermodynamics
Second Law of Thermodynamics
Law of Conservation of Mass
Law of Conservation of Momentum
Which is the result of the suppression of forest fires?
Increase in succession in forest ecosystems
Severe fires when wildfires do occur
Increase in biodiversity in forest ecosystems
Abundance of soil nutrients
Organisms have evolved to survive the environment in this biome through adaptations such as spines for protection and the ability of photosynthesis to take place in stems as opposed to leaves. What is the name of this biome?
Tundra
Chaparral
Temperate grassland
Desert
This biome is dominated by coniferous trees. What is the name of this biome?
Boreal forest
Desert
Tundra
Temperate grassland
In this biome, permafrost keeps the soil frozen most of the year. What is the name of this biome?
Tundra
Desert
Chaparral
Temperate grassland
Which of the following biomes is comprised mainly of trees that lose their leaves in the winter?
Tropical rain forest
Temperate deciduous forest
Tundra
Boreal forest
The biome that is adapted to and dependent upon frequent fires is:
Chaparral
Desert
Savannah
Tundra
Which of the following organisms has high biotic potential?
Whale
Human
Elephant
Frog
Biomes are classified based on:
Climate
Plant type and vegetation pattern
Temperature and precipitation
Location
What are the most significant and prevalent elements in the biosphere?
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus
Carbon, Hydrogen, Sodium, Iron, Calcium
Carbon, Oxygen, Sulfur, Manganese, Iron
Carbon, Hydrogen, Oxygen, Nickel, Sodium, Nitrogen
The cycle that is most common to all other cycles is the ________________
Carbon cycle
Hydrologic cycle
Nitrogen cycle
Rock cycle
The Second law of thermodynamics would tend to support_________________
people eating a balanced diet from all food groups
people eating about the same amount of grain as meat
more people becoming vegetarians
people eating more meat than grains and vegetables
A researcher concludes from a 10-year study that the biodiversity of an ecosystem had increased. Which set of observations represents evidence for this claim?
There were more niches and greater stability in the ecosystem.
There were more niches and less energy lost as heat in the ecosystem.
There were fewer niches for decomposers and less stability.
There were fewer niches for consumers and greater cycling of materials.
Which of the following are environmental functions of a wetland?
Purify water and help prevent flooding
House dangerous animals
Soak up important nutrients that people need for their gardens
Increase the risk of flooding for neighboring communities.
Which of the following identifies the two factors MOST harmful to biodiversity?
Destruction of habitat and invasion of non-native species
Depletion of the ozone layer and oil drilling
Acid deposition and increased use of agriculture fertilizers
Global warming and the Earth's growing human population
What trend would you expect to see in a predator-prey relationship?
As the predator population decrease, the prey population increases
As the predator population decrease, the prey population decreases
Both predator and prey populations stay constant
Predator population has no effect on prey population
Genetic diversity of a species is important to the survival of a population because it allows the species to-
adapt to changes in its environment
changes its niche from being more generalized to more specialized
require more energy to sustain it
produce fewer offspring in a generation
Protecting endangered organisms is important because if lost these endangered organisms would
increases the mutation rate in plants
cause pesticides to become more toxic to insects
reduce biodiversity in various ecosystems
decrease the space and resources available to other organisms
