Chapter 5

Which species interaction occurs when two species behave in ways that benefit both?

• Parasitism

• Commensalism

• Mutualism

• Predator/prey

Which species interaction occurs when one species benefits but the interaction has little, if any, beneficial or harmful effect on the other species?

• Commensalism

• Parasitism

• Mutualism

• Predator/prey

Which species interaction occurs when one species lives in or on another organism and benefits at the host’s expense.

• Predator/prey

• Mutualism

• Commensalism

• Parasitism

Which 2 are techniques used by prey to avoid predators?

• Ambush

• Camouflage

• Mimicry

• Hunting

If a hawk eats a rabbit, which one is the predator?

• Hawk

• Rabbit

What is coevolution?

• Evolution in which two or more species interact and exert selective pressures on each other that can lead each species to undergo adaptations.

• An interaction between organisms of different species in which one type of organism benefits and the other type is neither helped nor harmed to any great degree.

• Attempts by members of two or more different species to use the same limited resources in an ecosystem.

• Process of dividing resources in an ecosystem so that species with overlapping ecological niches use the same scarce resources in different times, ways, or places.

What is interspecific competition?

• Attempts by members of two or more different species to use the same limited resources in an ecosystem.

• Attempts by two or more organisms of a single species to use the same limited resources in an ecosystem.

What is intraspecific competition?

• Attempts by members of two or more different species to use the same limited resources in an ecosystem.

• Attempts by two or more organisms of a single species to use the same limited resources in an ecosystem.

What is true about secondary ecologic succession?

• There is no soil

• Lichen and moss are pioneer species

• Aquatic sediment is missing

• Soils are present

Which event would most likely lead to primary ecologic succession?

• Forest fire

• Flood

• Volcanic eruption leads to lava fields

• Abandoned farm