Ecology Chapter 19 Flashcards
(27 cards)
Where is the biosphere? What does it do?
The thin outer layer of the Earth. It is capable of supporting life
Define Ecology:
Study of the relationship of organisms to their environment
Define Population:
A group of individuals of a single species living in close proximity and capable of interbreeding
What makes up community?
a bunch of populations coexisting with other plants, fungi, protists and prokaryotes
What defines a habitat
The place where the organism lives
A niches is like a species _____ in a habitat?
job
What happens in predator prey interaction?
Predator benefits and the prey is harmed
What happens in herbivory
animal benefits and the plant is harmed
What kind of defense against predation and herbivory can a plant have?
Mechanical
* Armor in animals, thorns in
plants
What kind of defense against predation can animals have?
Chemical
Chemical defense
Toxins
Coloration defense
serves to warn potential
predators that it is toxic
What is mutualism?
occurs when both members of a pair of species benefit from their interaction
Who benefits from mutualism?
both members of a pair of species
What is parasitism?
living as a parasite in or on another organism.
Who benefits from parasitism?
the parasite benefits
Predator prey relationship led to mimicry, explain?
Harmless species mimic those that have toxins or
stings
Explain foundation species
primary producers (“base” or “bedrock” of a community)
Examples of foundation species
coral=foundation species of coral reef ecosystems
What is a keystone species
Species that maintain the ecological community structure
What harm do invasive species cause?
alter the community they invade
The study of the relationship of organisms to their environment is:
a. Community
b. Population
c. Habitat
d. Ecology
d. Ecology
Foundation species such as _______ are the “bedrock” of the community.
a. Coral
b. Birds
c. Wolves
d. Bats
a. Coral
The wolves in Yellowstone National Park help to control herbivores, they are considered _______?
a. Ecosystem servicers
b. Invasive species
c. Keystone species
c. Keystone species
