1. UNIT 7 – 8 REVIEW 9 TH A – B – C - D

2.  Members of the same species.  Dogs, cats, and people living in the same house.  A group of individuals of the same species living in the same area.  A community of organisms living together with the nonliving parts of the environment. Which statement best describes a population?

3.  Root.  Fruit.  Stem.  Leaves. The seeds of most angiosperms develop in the

4.  In the taiga.  In the forest.  In the dessert.  In the tundra. Where would you find a layer of permanently frozen soil just below the surface?

5.  From plants.  From the air.  From the sun.  From decomposers. In the nitrogen cycle, where do animals get their nitrogen?

6.  Dessert.  Grassland.  Deciduous forest.  Tropical rain forest. Which biome contains the greatest number of species (plants and animals)?

7.  Hibernate during the winter.  Grow needle-like leaves in winter.  Grow extra leaves when rain is scarce.  Shed their leaves and then grow new ones. What do deciduous trees do each year?

8.  The upper-level organisms don’t need as much energy.  There are more upper-level organisms than lower- level organisms.  Other substances move up the pyramid and take away some of the energy.  Some energy is used by organisms at each level for their own life processes. Why does the amount of available energy decrease at higher levels of the energy pyramid?

9.  Breathing.  Respiration.  Transpiration.  Photosynthesis. A leaf loses water through the process of

10.  They will live together peacefully.  They will compete for available resources.  Some organisms will become prey and eat other organisms.  One species will adapt so that they will have different needs. When different species with similar needs live in an ecosystem with limited resources, what will happen?

11.  They belong to different kingdoms.  They are hybrids of two different species.  They have adapted to different environments.  They appearances change from season to season. The fennec, artic, and gray foxes have different appearances because

12.  The process by which cells break down glucose with the release of energy.  The growing of a plant towards or away from something in the environment.  A community of organisms living together along with the nonliving parts of the environment.  A large group of ecosystems with similar climates and organisms.  The struggle among organisms to survive in a habitat with limited resources. Match the definition with the correct term. Write the letter on the line next to the definition. Celullar respiration Ecosystem Competition Biome Tropism Celullar respiration Tropism Ecosystem Biome Competition

13.  Anything that can affect an organism.  Process in which plants make glucose.  A group of populations that interact with each other in a particular area.  Organisms that get energy by breaking down the remains of dead organisms. Match the definition with the correct term. Write the letter on the line next to the definition. Environment Community Decomposers Photosynthesis Environment Photosynthesis Community Decomposers

14.  Producers - Ex: trees, grass, sunflowers, etc. – they take energy directly from the sun to create/produce their own food through the process of photosynthesis.  Consumers - Ex: bears, tigers, lions, etc. – they get the energy they need for their body processes indirectly from the sun by eating other organisms. Compare how consumers and produces use energy from the Sun. Include examples of each type of organism.

15.  They get less than 25 cm of precipitation a year. They are dry.  Desserts can be hot or cold.  In hot desserts temperatures can be as high as 38* C.  Hot desserts have plants like cacti that have short growth cycles.  In hot desserts animals are active at night when temperatures are cooler. Mention two characteristics of Dessert biomes.

16.  A population is a group of individuals of the same species while a community is a group of populations. Distinguish among a population, a community and an ecosystem.

17.   To release energy from the cells.  To collect and process information.  To carry nutrients around the body.  To regulate the release of hormones. What is the function of the circulatory system?

18.  They will live together peacefully.  They will compete for available resources.  Some organisms will become prey and eat other organisms.  One species will adapt so that they will have different needs.  A population is a group of individuals of the same species while a community is a group of populations. When different species with similar needs live in an ecosystem with limited resources, what will happen?

19.  Usually the base of food chains are producers which are organisms that take energy directly from the sunlight to create their own food, such as plants and trees. Consumers feed on these plants and take from them the energy they need to stay alive.  It is because of the sunlight that producers and consumers and most living organisms can stay alive.  If there was no sunlight, producers would die and animals that eat them would die too. Explain how most life on Earth depends on energy from sunlight.

20.  Structural adaptations – physical characteristics that allow an organism to feed, defend, find mate and reproduce.  Examples: webbed feet of water birds, backbone of vertebrates, seeds of plants.  Behavioral adaptations – conduct characteristics that allow an organism to feed, defend, find mate and reproduce.  Examples: building nests, showing teeth as warning, migrating to warmer climates during winter. Describe two different types of adaptations that occur in species and give an example of each.

21.  Members of the same species.  Dogs, cats, and people living in the same house.  A group of individuals of the same species living in the same area.  A community of organisms living together with the nonliving parts of the environment. Which statement best describes a population?

22.  Are found near the equator.  They are warm and rainy all year.  The annual rainfall is about 200 cm.  They contain more species than any other biome.  The leafy tops of its trees form a dense covering called canopy. Few plants grow in the floor where little sunlight reaches.  Bright colors, bold patterns, and loud sounds are common features of rain forest animals. Give two characteristics of the Tropical Rain Forest biome.

23.  Epidermis, thin outer layer of cells in a plant.  Biome, a large group of ecosystems with similar climates and organisms.  Photosynthesis, process in which plants make glucose  Transpiration, loss of water from a leaf.  Community, a group of population that interact with each other in a particular area. VOCABULARY

24.  It’s the reaction of plants moving towards or away from stimuli in the environment. Ex.: Phototropism: the reaction of plants looking for or away from a source of light.  What is a tropism? Describe one kind of tropism.

25.  A population is a group of individuals living in the same area, while communities are groups of populations and ecosystems a group of communities and its surroundings. Distinguish among a population, a community and an ecosystem.

26. Draw and label a food chain that shows energy flow from a plant to a large animal. Include at least four organisms in your food chain.