| Energy Flow | ||
| #1 | The original source of energy for most organisms on Earth | Sun |
| #2 | Obtains its energy from eating animals only | carnivore |
| #3 | obtains its energy from eating plants only | herbivore |
| #4 | obtains its energy from eating both plants and animals | omnivore |
| #5 | obtains its energy from eating dead organisms | scavenger |
| Effect on rabbit population | ||
| #1 | increase in resources | increase |
| #2 | increase in predators | decrease |
| #3 | increase in disease | decrease |
| #4 | decrease in resources | decrease |
| #5 | decrease in habitat | decrease |
| Yet more energy flow | ||
| #1 | What happens to energy as it travels through a food chain? | it decreases |
| #2 | Most of the energy in an organism is used for ____ _____. | daily activities |
| #3 | An organism that cannot make its own food is called a | consumer/heterotroph |
| #4 | An organism that makes its own food is called a | producer/autotroph |
| #5 | Bacteria break down dead organisms and return the nutrients to the earth. These are called | decomposers |
| Living Together | ||
| #1 | Helps one, harms one | parasitism |
| #2 | helps both organisms | mutualism |
| #3 | helps neither organism -both could lose | competition |
| #4 | helps one, one unaffected | commensalism |
| #5 | Two organisms living closely together, benefits at least one | symbiosis |
| Symbiosis examples | ||
| #1 | tapeworm in a cat - tapeworm gets nutrients, cat loses nutrients | parasitism |
| #2 | cattle egret birds following cows - egrets get to eat insects stirred up by walking cattle | commensalism |
| #3 | squirrel nest in a tree - squirrel builds nest in tree, tree not affected | commensalism |
| #4 | hummingbird and a flower - hummingbird gets nectar to eat, flower gets pollenated | mutualism |
| #5 | barnacles attach to a whale - barnacles get a place to live, whale unaffected | commensalism |
| Final Question | |
| In malaria, the disease-causing protist lives inside a female mosquito as a carrier, but does not hurt her. The mosquito bites a human or animal, and the protozoan goes into and infects the person. It makes the person very sick. What types of symbiosis are happening? Name and explain each type. | Commensalism - mosquito and protozoan; Parasitism - human and protozoan |