Ecosystems and Food Webs
nonliving factors in our environment, such as temperature, light, water, and nutrients
Abiotic
What types of organisms are generally present at the beginning of primary succession?
Lichens and mosses
What is the general order in which energy is transferred in an ecosystem?
Producer -> Primary Consumer -> Secondary Consumer -> Tertiary Consumer
What two organelles are only found in plants
Cell walls and chloroplasts
What are differences in physical traits of an individual from the species to which it belongs?
Variation
an organism that must eat other organisms to obtain energy
Consumer
A fire burns an entire forest down leaving only the soil. What type of succession would occur?
Secondary
Biodiversity referes to...
The number and variety of different species in an area
What cell structure is involved in getting rid of waste?
Cell membrane
A characteristic or feature that increases an organism's ability to survive within a changing environment.
Adaptations
True/False
Arrows show the flow of energy through a community
True
Secondary succession occurs __________ than primary succession as there are already seeds and soil.
a. slower
b. same rate
c. badly
d. faster
d. faster
A keystone species can do what?
Keep the entire community in balance
An organism whose cells do not have a nucleus
Prokaryote
Ex: bacteria
If a population's genetic trait does not support survival and reproduction, what will happen?
It will become less common among the species
Invasive animal species tend to overpopulate an area quickly. This is most commonly because
a. The often outcompete the others and don't have a predator
b. They have nothing to compete with
c. They eat all the food completely
d. The undergo mutations more quickly
a. The often outcompete the others and don't have a predator
After a volcanic eruption igneous rock covers the land. What type of succession would occur?
Primary
DOUBLE JEOPARDY!
What is the ability of an ecosystem to maintain biodiversity and production indefinitely
Sustainability
What is the control center of the cell and what does it hold?
Nucleus - holds genetic materials such as chromosomes and genes
DOUBLE JEOPARDY!
What are the three types of adaptations and what do they mean?
Behavior: The behaviors that organisms to develop to survive in their environments
Structural: Changes in physical appearance
Physiological: An internal change to help the organism survive
You can use a food web to predict __________
a. why certain organisms eat others
b. how direct and indirect impacts will occur if a species is no longer present
c. who will die
d. you can't predict anything from a food web
b. how direct and indirect impacts will occur if a species is no longer present
DOUBLE JEOPARDY!
How is succession and equilibrium related?
succession restores and maintains equilibrium
Why is species diversity within an ecosystem important?
Keeps the ecosystem balanced
Why do ALL living need mitochondria?
Everything needs energy - the mitochondria is the powerhouse of the cell
In a forest, which would be more likely to survive and reproduce: a population of white rabbits or a population of brown rabbits? Why?
a. White Rabbits: They blend into the environment
b. White Rabbits: They are more agile than brown rabbits
c. Brown Rabbits: They are more agile than white rabbits
d. Brown Rabbits: They blend into the environment
d. Brown Rabbits: They blend into the environment