Look at the food web. Which organism is an omnivore?
(Omnivores eat producers and animals)
EITHER one of the answers is correct:
- Sparrow (eats from blueberry bush AND grasshoppers)
- Skunk (eats from blueberry bush AND grasshopper)
A change in the environment that causes an ecosystem to be different is called a(n)
a. lichen
b. community
c. disturbance
d. succession
c. disturbance
A ______________ shows all the different populations living in an area.
a. species
b. biosphere
c. population
d. community
d. community
A stork uses its bill (mouth) to eat a dead animal. The dead animal's body is used by some bees for food and egg laying. What is the relationship between the stork and the bees?
a. predation
b. competition
c. parasitism
d. mutualism
e. commensalism
e. commensalism
(The bees get a place to lay their eggs. The stork is not affected by the bees)
Name the two autotrophs in this food web.
grass and blueberry bush
Organisms that get energy from the sun and make their own food. What is this process called?
Photosynthesis
True or false:
Succession only changes plant communities, but not animal communities
False
___________________________ shows a growth curve that increases and looks like a "J".
exponential growth
a. In parasitism, two organisms help each other.
b. Parasitism is the same as predation because one organism hunts, kills, and eats the other organism.
c. Parasites don't affect the host.
d. Parasites make make another organism weaker.
d. Parasites make make another organism weaker.
What is another name for consumers?
heterotroph
plant -> grasshopper -> frog -> snake -> hawk
What is the name of the trophic level that the frog is in?
Secondary consumer because the
plant = primary producer
grasshopper = primary consumer
frog = secondary consumer
snake = tertiary consumer
Name a type of disturbance that would cause secondary succession.
Any answer that shows a disturbance that does not completely wipe out an area.
Examples: fire, hurricane, flood, tornado, etc.
The relationship that is represented by the symbols (+,+) is called __________________
mutualism
Name two resources that organisms would compete for.
Any answer that shows two organisms are fighting over something is accepted
Examples: food, mate, leadership, habitat, water, etc.
Give two examples of biotic factors of the environment
biotic means living things.
Answers are accepted as long as they are living things.
Ex: bacteria, dog, human, fish, flower, tree, bird, etc.
In the food chain below, who has the least amount of energy?
grass-> rabbit -> snake -> hawk
hawk
A community will eventually reach a stage where there is a balance between plants and animals. This stage is called ______________
climax community
The following words are placed in order from smallest to largest. What is the missing level?
individual, population, species, community, ______________
ecosystem
What type of relationship is shown in the symbols (+, -)?
parasitism
What type of consumer is the fish?
omnivore
because it eats phytoplankton (producer) and zooplankton (not a producer)
What is the difference in energy flow between food chains and webs?
Food chains show energy flowing in one direction.
Food webs show energy flowing in many directions
Set the timer for 2 minutes.
Name 2 differences between primary and secondary succession.
Any two of the following answers are acceptable.
- Primary succession happens slower than secondary succession.
- Primary succession has no remains of the older community but in secondary succession, parts of the older community exist.
- Primary succession starts with rocks and secondary succession starts with soil.
_____________ are a type of pioneer species is seen at the beginning of primary succession. They create soil by breaking down rocks.
lichens
You must answer both questions.
Ticks carry bacteria that causes a disease. Ticks aren't harmed by the disease but they pass on the bacteria to humans who can get the disease.
1. What is the relationship between the tick and the bacteria?
2. What is the relationship between the tick and the human?
1. tick and bacteria = commensalism
2. tick and human = parasitism
Set the timer for 4 minutes.
Grasshoppers and squirrels eat plants.
Scorpions eat grasshoppers.
Foxes eat scorpions and squirrels.
Golden eagles eat squirrels.
Who is a primary consumer?
grasshoppers or squirrels = primary consumer
because they eat primary producers