A symbiotic relationship where both organisms benefit.

A symbiotic relationship where one organism benefits and the other is harmed.

A symbiotic relationship where one organism benefits and the other is unharmed.

Barnacles create home sites by attaching themselves to whales. As the barnacle is a filter feeder, it also gets access to more water (and more food) due to the relationship. Whale is unaffected.

Tapeworms reside in human intestine and take nutrients from the human

E. Coli is a bacteria that lives in the gut of humans. The human provides the ideal habitat for e coli reproduction and the e coli provides the extra vitamin K that we use.

The tick feeds off the blood of the deer.

As bison walk through grass, insects become active and are seen and eaten by cowbirds. Nothing happens for the bison.

Josie likes to visit the park in her neighborhood to watch hummingbirds. Based on the beak of the hummingbird, what does it most likely eat?

Bullfrogs are Florida’s largest frog. Frogs spend part of their life cycles in water and part on land. Which physical characteristic is most useful for a water environment?

In the fall, a ground squirrel will store the energy from food as a thick layer of fat. What is most likely the reason for this adaptation?

Plants have various adaptations for survival. Some adaptations protect plants by discouraging animals from eating the flowers. Which of these is an adaptation that protects a rose from animals?

Physical characteristics that help an organism survive are called:

A group of organisms that look alike and can reproduce among themselves naturally in nature is known as a:

Predator and prey populations are linked. For example, if the number of prey decreases, then the number of predators will ___________