Levels of Ecology
Which is a smaller ecological level; a population or species?
species
Eat only plants
herbivores
True or False: Energy flows in only one direction.
True
What do the arrows in a food web represent?
energy flow
Clownfish live in sea anemones safe from their stings due to their sticky surface. Clownfish attract predator fish toward the sea anemone that then get stung and consumed by the anemone. Parasitism, commensalism or mutualism?
mutualism
Which is bigger, an ecosystem or a biome?
biome
Eat only animals
carnivores
What is the original source of energy for a food web?
the sun
Does the arrow in a food web point toward what it is eating or toward what it is being eaten by (predator)?
what it is being eaten by (predator)
Barnacles attach themselves to the skin of whales. The huge whales transport the tiny barnacles to plankton-rich waters, where both species feast upon the abundant microorganisms that live there. Parasitism, commensalism or mutualism?
What level of organization would include a group of the following: birds, snakes, rabbits, foxes and oak trees?
biome, ecosystem, population, or community
Eat plants and animals
omnivores
On average only 10% of the original energy in a food web is available to the next level. What happened to the remaining 90%?
used for growth/development, metabolism, reproduction, lost as heat
What type of organism is always found in the second trophic level?
herbivores
Shrimp burrow in the sand in which both the fish and shrimp live. When a predator comes near, the fish touches the shrimp with its tail as a warning. Then, both fish and shrimp retreat to the burrow until the predator is gone. Parasitism, commensalism, or mutualism?
mutualism
Define population
A group of the same type of species in the same area
Obtain their energy from the sun to make their own food
producers
If a producer receives 10,000 kcal of energy from the sun, how many kcal are available to the herbivore in the next trophic level?
1000 kcal
What is there more of in an ecosystem, producers or herbivores?
producers
Barnacles may root itself within a crab's reproductive system. While the crab does not die from this relationship, its ability to have babies is greatly diminished. Parasitism, commensalism or mutualism?
parasitism
List the levels of organization below from largest to smallest: species, biosphere, community, ecosystem, population, biome
biosphere, biome, ecosystem, community, population, species
Eat dead animal/plant waste
decomposers
If a producer receives 12,532 kcal of energy from the sun, how many kcal are available to the secondary consumers?
125.32 kcal
False: any trophic level but the first
Hermit crabs use the shells of dead snails for homes.
Parasitism, commensalism, or mutualism?
commensalism