If two organisms are in the same class what can you predict about their relationship

a. they are not closely related

b. they share a common ancestor

c. they compete for resources

d. one organisms evolved into the other organisms

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.