Hierarchy of Ecology
All the members of a species that live in the same area at the same time
What is a population?
In this area, the abiotic factors is too low or too high, and weaker members of the population die.
What are the zones of physiological stress?
Characteristics that make an organism better suited to its habitat
What are adaptations?
The change in the frequency of genes of a population over time
What is evolution?
A human arm, a bat wing, and a whale flipper all have a common structure, but are used for different things.
What type of structures?
What are homologous structures?
All the different populations living and interacting in one area
What is a community?
What are abiotic factors?
All adaptations are a result of this...
What are different genes (or genetic diversity)?
Oh no! A typhoon wiped out a huge portion of the population... only a few members left to carry on the species in that area. (Name the cause of the decrease in gene pool.)
What is the bottleneck effect?
The winters are getting colder in the mountains, and over time the elk population is found to have greater fat storage capability. What type of stress?
What is physiological stress?
All parts of the Earth occupied by life
What is the biosphere?
This describes the physical space and environment that an organism can survive in
What is a habitat?
Name the adaptation type:
The body temperature and metabolic rate of bears decreases in winter while they hibernate... this allows them to conserve energy!
What is a physiological adaptation?
A group of hunters goes out and randomly kills most of the bears it can find in a remote area. Only a few survive and carry on the species in that area. What is the cause of the decrease in gene pool?
What is genetic drift?
Bats, birds, and insects all have wings. What type of evolution?
What is convergent evolution?
A large geographical area characterized by a specific climate, dominant vegetation, and the animal life adapted to those conditions
What is a biome?
These graphs define the specific abiotic factors that are survivable for a species
What are tolerance range graphs?
Name the adaptation type:
A giraffe's neck is very long and helps it to reach leaves on tall trees.
What is a structural adaptation?
A small group of birds is blown to a new island, and they establish a new population there, and now have a smaller gene pool. What is causing the decrease in gene pool size?
What is the founder effect?
These are the types of structures that we see with convergent evolution.
What are analogous structures?
All the living and nonliving things that are found in a specific area
What is an ecosystem?
Habitats are defined by these two things
What are biotic and abiotic factors?
Name the type of adaptation:
Food is scarce (not much of it), so fishies swim to a new area of the ocean to live
What is a behavioral adaptation?
The gene for black mice becomes more prevalent (more common) because its predator can't see them very well, and has an easier time finding the white mice. This is the cause of the increase in frequency of the gene for black fur.
What is natural selection?
This is how a species' scientific name is determined.
What are the last two taxons (the genus and species)?