Week 2 Biosphere Flashcards
What does ecology mean?
The study of Earth
What is the biosphere?
the outer skin of the Earth that can support life
What are the 3 parts of the biosphere?
- atmosphere (air) 2. hydrosphere (water) 3. lithosphere (earth)
What is the lowest level of the biosphere?
individual (single species)
Define species.
a group of organisms so similar they can can breed and produce fertile offspring (Biological Species Concept)
What is the next level up from an “Individual” or one member of a species?
A population.
A group of one type of species living in one area.
A species can have many populations all over the world.
An individual is one of a species.
A population is a group of ONE species living in one area.
What is a Community?
A COMMUNITY is all the populations of different species that live in a certain area.
What type of “community members” would you find in this community setting?
Multiple answers correct. Some examples would be: moss, grass, trees, ferns, squirrels, chipmunks, deer…
An individual is one of a species.
A population is a group of ONE species living in one area.
A community is all the populations of different species that live in a certain area.
What makes up the next level, the ECOSYSTEM?
The biotic & abiotic factors within a certain area.
Give examples of biotic and abiotic things in a desert ecosystem.
biotic: cactus, lizard, vulture
abiotic: sand, rocks
An individual is one of a species.
A population is a group of ONE species living in one area.
A community is all the populations of different species that live in a certain area.
An ecosystem is all the biotic & abiotic things in a community.
What is the next level, and what is it made up of? (HINT: it starts with a “B”)
BIOME
is made of GROUPS of ecosystems in the same climate & communities.
But not neceesarily in the same areas.
Explain how deserts area a biome.
The lowest level of the _______ is an individual.
The next level of the _______ is a population.
The third level of the _______ is a community.
The 4th level of the _______ is an ecosystem.
The 5th level of the _______ is a biome.
And ALL the levels combined make up the _______ .
(HINT: it starts with a “B” and is the thin layer of the Earth that supports life)
BIOSPHERE! ! ! !
The main source of energy for Earth comes from where?
The SUN ! ! ! !
Name the elements involved in photosynthesis.
Name the molecules.
Elements: carbon, oxygen, hydrogen
Molecules: carbon dioxide, water, glucose, oxygen
What are the reactants and what are the products?
ROOT words:
suffix -troph
-troph
“how food is obtained”
Now what does autotroph & heterotroph & chemotroph mean?