Ecosystems
Define ecosystem
All of the organisms living in an area together with their physical environment
Define abiotic and give 6 examples.
nonliving parts of an ecosystem
Ex - air, water, rocks, light, sand, temperature
Unequal survival and reproduction that results from the presence or absence of particular traits is known as what?
Natural Selection
The selective breeding of organisms by humans for specific characteristics is known as what?
artificial selection
How does algae make its own food?
Uses the sun's energy
Give an example how one ecosystem moves from one ecosystem into another.
Ex - soil washes from mountain into lake or pollen blows from one ecosystem to another
Define organism
An individual living thing
A change in the genetic characteristics of a population from one generation to the next is known as what?
evolution
The ability of one or more organisms to tolerate a particular chemical designed to kill is known as what?
resistance
Majority of plants on land receive their resources provided by what 2 things?
Air (sunlight) and soil (minerals)
What are the 5 basic components for an ecosystem to survive?
energy, mineral nutrients, water, oxygen, living organisms
A group of organisms that are closely related and can mate to produce fertile offspring are known as _____________
species
Adaptation is when a deer gets thick fur in the winter. True or false
true
What are the six kingdoms that scientists classify organisms into?
archaebacteria, eubacteria, fungi, protists, plants, animals
Animals that lack backbones are known as what?
invertebrate
True or false: if one component of an ecosystem breaks the entire system may not work.
True
Every population is part of a _________________
community
The coevolution is the process of two species evolving in response to short term interactions with each other. True or false
False - long term interactions
What happens to bacterial when it breaks down the remains and waste of organisms?
returns nutrients to the soil
Animals that havae backbones are known as what?
vertebrates
Give 5 examples of Biotic factors.
plants, animals, dead organisms, leaves, waste from organisms
Define habitat
the place an organism lives
True or false - Even though we control how animals reproduce, we do not control how they evolve.
False
How does fungi obtain their food?
By absorption of nutrients provided by the environment around them
Where do you find mosses?
Damp areas