The bacteria in our large intestine break down food that we consider waste. During this process, vitamins are released that we absorb into our bloodstream. This is an example of which symbiotic relationship?

Red-billed oxpeckers are birds that feed on parasites found on an impala. The impala gets rid of parasites and the red-billed oxpeckers get a yummy dinner. This is an example of _______.

A relationship between two organisms in which one organism benefits and the other is unharmed.

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.

A cuckoo and a warbler are both birds. A cuckoo will find the nest of warbler instead of building her own, and she harms the warbler by knocking a warbler egg out of nest and laying her own. When the warbler mother returns, she isn’t aware of the switch. The warbler will then raise the baby cuckoo bird instead of her own baby. Which term best describes this relationship?

Which of the following symbiotic relationships is considered parasitic?

Nematodes (a round worm) live in plants and gain nourisment from the plant but do not seem to harm it. What type of symbiotic relationship is this?

Mosquitoes are parasitic with humans because:

Bromeliads and trees are in a commensal relationship because

What does symbiosis mean?

A person eats undercooked meat from an animal infected with tapeworms. The tapeworm then lives in the person’s intestines and absorbs important nutrients that the person needs. This tapeworm causes harm to the person. Which type of relationship is described?

A sea cucumber is an animal that lives in the ocean. An imperial shrimp will ride on the back of the sea cucumber as a way of easy travel through the ocean. The sea cucumber is not helped or harmed. Which type of relationship do these animals have?

Ants and acacia trees have a mutualistic relationship because

A mistletoe plant attaches itself to a spruce tree causing harm by absorbs the tree’s water and nutrients. What type of relationship does this describe?

A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?

Predation is similar to _______________ in that both types of relationship benefit one of the interacting species while the other is harmed.