A group of individuals that belong to the same species and live in the same area.
What is a population
100
A bird stalks, kills, and then eats an insect. Based on it's behavior, which TWO ecological terms can be used to describe this bird?
What are consumer, and carnivore.
100
Primary consumers always make up the first trophic level in a food web. True or False?
What is false, primary producers do.
100
Humans affect the carbon cycle by burning fossil fuels, performing cellular respiration, burning wood, polluting, and cutting down rain forests. All of which add... (what to where?)
What is CO2 gas to the atmosphere
100
Plants and animals : omnivores
carcasses : ?
What are scavengers
200
Our entire planet, and all the life within it.
What is the biosphere
200
All of the interconnected feeding relationships in an ecosystem make up a food...
What is web
200
Energy flows through an ecosystem in a one-way direction. Although it branches, it always flows from ______________ to ________________.
What is producers to consumers
200
This is the process by which some soil bacteria convert nitrates into nitrogen gas.
What is denitrification
200
carbon : organisms & oceans
nitrogen: ?
What is the atmosphere
300
I look outside and see a flock of geese fly overhead, the bunnies are scurrying around looking for food and in the background I hear a group of seagulls calling. I am observing on WHAT level?
What is a community
300
A word that means the same thing as consumer is...
What is heterotroph
300
On average, this is the percentage of energy either lost as heat, or used by an organism for growth, movement, reproduction, etc...
What is 90%
300
The carbon in coal, oil, and natural gas come from:
What is dead organic matter (or the remains of dead organisms).
300
tick on a human : parasitism
barnacle on a whale:
What is commensalism
400
I am an ecologist studying what abiotic factor might be causing a decline in some of the different species of penguin populations in Antarctica. I am studying a what?
What is an ecosystem.
400
How do MOST primary producers make their own food?
What is through photosynthesis
400
The more levels that exist between a producer and a given consumer, the ____________ percentage of the original energy from producers is available to the consumer.
What is less
400
Plants play an important role in the water cycle. Plants absorb groundwater through their roots. That water re-enters the atmosphere in the form of water vapor when it exits the leaves of plants during _________________.
What is transpiration
400
populations that continuously increase faster and faster : exponential growth
populations that increase, and eventually level off to their carrying capacity :
What is logistic growth
500
In your common task, you were to construct a food web with different organisms all found in the same biome. What was the name of this biome?
What is a chapparal
500
Phytoplankton are photosynthetic, the ribbed mussel filter feeds on phytoplankton, blackfish eat mussels by grinding them up with their teeth. Human then catch and eat blackfish. Humans in this case are making up which trophic level?
What are tertiary (or third level) consumers
500
In a particular kelp forest ecosystem the kelp gets eaten by sea urchin, which get eaten by a fish called "sheephead". The sheephead get eaten by giant sea bass. Humans love to divulge in chilean sea bass as a popular dinner dish. If the producers have 7000 kcal of energy, how much energy will be available for the sheephead?
What is 70
500
All organisms require nitrogen to make ______________, which in turn are used to build ___________________.
What are amino acids; proteins
500
General place where an organisms lives : habitat
The way an organisms uses the physical and biological conditions in which it lives :