Ecology and Evolution

An organism which can breed to reproduce fertile offspring

• species

• population

• people

• community

define population

• All the living organisms and non-living factors interacting together in a particular part of the environment

• All the populations of living organisms in a particular habitat

• All the members of the same species in a particular area

• An organism which obtains food energy from other organisms

Which of these is an example of a biotic factor?

• sunlight

• water

• temperature

• Predators

In this food chain, which organisms are a secondary consumer?

• Lion, snake, owl, wild cat

• mouse

• kite

• tree and rabbit

What process does this define: The process of change by which an organism or species becomes better suited to its environment

• Natural selection

• Adaptation

• Negative feedback

• sexual reproduction

As energy is passed on, from trophic level to trophic level, what percentage of energy is lost?

• 50%

• 5%

• 10%

• 20%

What is an autotroph?

• An organism that produces complex organic compounds from simple substances present in its surroundings in order to obtain the energy needed to survive

• An organism that ingests or absorbs organic carbon in order to be able to produce energy and synthesise compounds to maintain its life.

• An organism which obtains food energy from other organisms

• An organism which obtains their energy in food compounds obtained by eating other animals

What does this organism eat?What does that make him?

• a carnivore

• a herbivore

• an omnivore

• a candivore