Environmental Factors
Things like rocks, wind, sun and temperature are known as what?
Abiotic factors
This is what is achieved when a keystone species is present and there is balance in the ecosystem
Homeostasis
Organisms have a higher likelihood of surviving based on their
Fitness
A solution that has a pH of 4.5
Acidic
When a population's growth has stabilized and is no longer increasing or decreasing
Carrying capacity
Living organisms in the environment are known as
Biotic factors
According to Dr. Jim Estes, when starfish were removed from the ecosystem the biodiversity ______.
Decreased
Predators, hunting and resource availability can change the allele frequencies in a population. These are known as ________.
Selective pressure
The compound that allows urchins to build a strong test (shell)
Calcium carbonate
The removal of a secondary consumer will cause producers to
Decrease
A species responsible for preserving biodiversity and maintaining the ecosystem
Keystone
The different colors and sizes in urchin shells represents
Variation
Increased levels of this compound are responsible for ocean acidification.
Carbon dioxide