Ecosystems
These organisms breakdown dead matter to return nutrients into the soil?
Decomposers
In a predatory relationship, this is the organism being hunted
Prey
Locust populations can quickly expand into these
Swarms
This insect migrates thousands of miles from Canada to Mexico for winter
Monarch butterfly
This term describes the variety of life in an ecosystem.
Biodiversity
The base of aquatic ecosystem’s food webs are this?
Phytoplankton
Small amphibians, or insects use bright colors in an effort to?
Show that they are dangerous/poisonous
A sudden decrease in a species population.
Bottleneck
These fish migrate from saltwater to freshwater for breeding, and die in the process.
Salmon
When a species is at risk for extinction it is called this.
Endangered
What is an ecosystem with water, such as a lake, coral reef, pond?
Aquatic ecosystem
Predators do this to the prey population to prevent overpopulation?
Cull/control populations
The maximum number of animals an environment can support
Carrying capacity
Snowy owls migrate south in the winter in order to find?
Food
The most diverse area on the planet is?
The Amazon Rainforest
These show the movement of energy in an ecosystem
Food chains/webs
What is it called when the population of an organism on lower trophic levels is controlled by a species on a higher one.
Top-down control
Limiting factors that are dependent on population density
Density dependent factor
Sharks use this like a compass to migrate
Geomagnetic field
Loss of biodiversity in an ecosystem can lead to this.
Eco system collapse
What is a species with low population density, yet has a major impact on the environment?
Keystone Species
What is it called when 2 or more animal species share similar warning patterns/colors to scare off predators?
Mullerian mimicry
What are environmental factors that limit max populations?
Abiotic factors
What is the path or route animals take to complete a migration
Migratory corridor
Genetic diversity in ecosystems helps with this?
Resilience to disease/environmental changes