An organism that breaks down the remains of dead plants or animals without need for internal digestion.
decomposer
What are the primary consumers in this food web?
rabbit, mouse, and grasshopper
An invasive species must be non native and ______________.
cause harm
If a frog was completely removed from its ecosystem, which of the following could happen (2 answers!!)
A) everything will remain the same
B) the organisms that rely on the frog will start to die
C) the organisms that the frog ate (i.e., bugs) would overpopulate and get out of control
D) the frogs will die
B and C
All living and nonliving things and all their interactions in an area.
ecosystem
All food webs start with...
the sun
If a person takes a crocodile out of its native ecosystem and puts it in another ecosystem and it begins to harm the species in that ecosystem, is it considered an invasive species?
yes
Which of the following causes harm to an ecosystem?
A) Volunteering at a park
B) Participating in beach clean up
C) Picking flowers and other native plants from parks
D) Leaving wildlife and plants alone
C
Actions by one thing that have an effect on a different or separate thing
interactions
What is the LAST consumer in a food web called?
Apex Consumer
A species of mouse begins to spread diseases and chew through wiring in neighborhoods, causing power outages and sickness. The mouse is native to the area and is causing harm to humans. Is it invasive?
no, it is just a pest
Answers may vary (ex: beach clean up, picking up trash, leaving native organisms alone, etc.)
Requirements for the well-being of an organism
needs
True or False: A producer makes its own food and does not have to eat anything to get its energy.
True
What does it mean if a species is non native?
What does it mean for species to be interdependent on each other?
All organisms in an ecosystem need each other to survive and thrive.
A group of organisms that are similar to one another and can combine to produce more of their kind.
species
What must all food webs end with?
True or False: A non living thing can be invasive
false
True or False: There are ecosystems that can survive without the sun because the organisms in that ecosystem have adapted to life without sunlight.
True (abyss of the ocean)