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What components make up an environment?
abiotic and biotic factors
In which zone would you find animals, but no plants or algae?
Abyssal zone
which of these pairs of organisms are competing for the same food?
fresh water snails and small fish
When a species becomes overpopulated in a particular ecosystem, typically, some individuals will survive, some will die, and some will _______.
migrate
A particular area can support a finite number of organisms. When the number of a species goes beyond what an area can support, it is called ________.
overpopulation
What term is used to describe a group of rabbits of the same species that live together in the same forest at the same time?
population
Identify the true statement.
mammals are consumers
Without bacteria, nothing else on Earth could live. This is primarily true because of the role they play in _________________.
decomposition
You can usually tell something about what a mammal eats by looking at its teeth. Which of these describes the teeth that herbivores usually have?
large, sharp incisors and large molars, small or no cannies.
Herbivores belong in which trophic level of the energy pyramid?
primary consumers
Which statement best describes humans?
Humans and omnivors
Monarch butterflies are poisonous and viceroy butterflies are not, yet they look very similar. Which of these statements describes this situation?
viceroy evolution resulted in mimicry of monarchs
Camouflage is an adaptation that can be useful to _____________________.
both predators and prey
Which cactus feature is an adaptation that protects it from predators?
spines (needles)
How do humans frequently affect biotic and abiotic factors in ecosystems
by cutting down trees in a forest or by polluting water in a lake
True or false organisms within a population must compete for biotic and abiotic factors?
true
