Write the scientific term: 1. It is a process through which living organism populations adapt and change to survive and produce more offspring. (............................) 2. The role of an organism in its habitat. (............................) 3. The struggle between organisms to survive as they use the same limited resources. (............................) Choose the correct answer: 1. Living things can adapt to their natural environment. a.True b. False 2. There are three major types of interactions. a.True b. False 3. Different kinds of adaptations are separate from each other to aid survival. a.True b. False What happens if: 1. Two species have the same kind of food. ................................................................................................................ ................................................................................................................ 2. Organisms cannot adapt successfully to changes in their environment. ................................................................................................................ ................................................................................................................

Explain how competition between organisms affects the availability of resources in an area.

Write the scientific term: 1. A series of events in which one organism eats another and obtains energy and nutrients. (............................) 2. The main source of the energy on the Earth. (............................) 3. Network of interconnecting and overlapping food chains in an ecosystem. (............................) Choose the correct answer: 1. Grass in the food chain represents a .................. a.Consumer b. Producer c. Decomposer d. Scavenger 2. Bacteria in the food chain represent .................... a.Consumers b. Producers c. Decomposers d. Scavengers 3. If a locust in a food chain depends on the grass directly, it represents a ............... a.1st level consumer b. a & c c. Primary consumer d. Producer From the next living things try to form different food chains. (Grasshopper – snake – fox – frog – rabbit – grass)

Which of the following is the best definition for evolution? An environmental change that a species must adapt toA change in a species over a single generationA change in a species over many generationsA random mutation that is passed on from parents to offspring 2What is meant by the term ‘survival of the fittest’?Individuals at the top of the food chain will survive, while those at the bottom will die outLarger individuals within a population will survive, while smaller ones will die outIndividuals with a selective advantage within a population will survive, while others will die outIndividuals who work hard to become physically fit will survive, while others will die out3Which scientist proposed the same theory of natural section as Charles Darwin?Alfred WallaceJean-Baptise LarmarckRichard DawkinsGregor Mendel4Which of the following is not part of the process of speciation?Natural variation within a population Interbreeding between two speciesDifferent parts of the same population becoming isolated in different environmentsFormation of a geographical barrier within a population5Which of the following could be an example of ‘mimicry’ as protection from predation?A green caterpillar on a red flowerA red caterpillar with a bitter tasteA red caterpillar with a sweet tasteA green caterpillar on a green leaf

What is the best definition for an ‘ecosystem’? Interaction of a community of living organisms with each other and with non-living parts of the environmentOne species relying on another species for survivalSeveral populations of different species across all kingdoms living interdependently in a habitat A group of individuals of the same species2What is the term for non-living factors that affect living organisms and communities?Environmental factorsBiotic factorsAbiotic factorsInterdependent factors 3Which of the following is an abiotic factor?Light intensity New predators arrivingAvailability of foodNew competition4Which of the following is a biotic factor?TemperatureMoisture levelsAvailability of carbon dioxideNew pathogens or parasites 5All species in a community depend on one another for survival and any change can affect many different species. What is this relationship known as?EcosystemInterdependenceSurvival of the fittestFood chain6Which of the following is not an example of mutualism?Nitrogen-fixing bacteria in pea root nodulesOxpecker birds eating ticks and larvae infesting the skin of buffaloGrey squirrels out-competing red squirrelsAlgae and fungi living together as lichens

are the special ways that an organism acts or behaves to enable it to survive and grow in a particular habitat.