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science final barker
packet 1
| Question | Answer |
|---|---|
| Cardiac muscle is | involuntary |
| Why are the nervous and endocrine systems similar? | Both control and coordinate body functions |
| What are the main functions for Skeletal | provides structure, support and protection; makes red blood cells |
| What are the main functions for Muscular | Helps the body move; provides body heat |
| What are the main functions for Cardiovascular | Transports waste, nutrients and gases to and from all parts of the body |
| what are the main functions for Respiratory | Carries oxygen and carbon dioxide out of lungs; exchanges gases |
| What are the main functions for Digestive | Breaks down food |
| What are the main functions for Excretory | Eliminates waste |
| What are the main functions for Nervous | Controls and coordinates body systems; responds to stimuli |
| What are the main functions for Immune | Protects body from germs; fights infections |
| What are the main functions for Reproductive | Sperm and Egg combine to make offspring |
| After oxygen and carbon dioxide are exchanged in the lungs, a vessel carries the gases to the rest of the body. What is the name of this vessel? | Arteries carry it to the rest of the body and Capillaries exchange |
| How are organisms organized? | Cell - Tissue - Organ - Organ System |
| When food is digested, what fluid carries the nutrients, vitamins and minerals to all other cells of the body | Blood |
| What are 2 ways to measure a human body's response to exercise | Heart rate and Blood pressure |
| What is the function of Red Blood Cell | Carries Oxygen |
| What is the function of White Blood Cell | Fights infection |
| Neuron | Sends messages (impulses between body and brain |
| Skin Cell | Protects inside of body |
| Who is the man credited with natural selection and evolution | Charles Darwin |
| What is an adaptation | A trait that helps and organism survive in its environment |
| Give an example of an adaption. | Duck- webbed feet-can swim in water...oily feathers-waterproof the body while swimming and getting food...flat beak-for scooping algae and seaweed |
| How does variation happen | Sexual Reproduction and mutations |
| What is natural selection | Survival of offspring with helpful traits, those traits are passed to offspring |
| What is evolution | How a species changes over time |
| List 3 pieces of evidence supporting the theory evolution | Fossil Records - show changes in a species DNA - can show if different species are closely related Similar Structures - compare to structures of living animals, look for similarities |
| Where would you find the oldest fossils | lowest layers of sediment |
| What is the ecosystem | Living and non living things interacting in the same place |
| Nutrients, water, oxygen and nitrogen all move through cycles in an ecosystem. this allows them to be what? | reused/recycled over again |
| What type of organism begins each food chain | Producer |
| What is a food web | Interconnected food chains |
| Name a consumer in the energy pyramid | Sea urchin, sheephead, sea bass |
| Explain what happens to the amount of energy and the number of organisms as you move up each level of an energy pyramid | As you move up the pyramid, the amount of energy and the number of organisms decrease |
| What is the difference between a population and community | Population: same type or kind of organism living in the same place Community: All the populations (many species) interacting in the same place |
| What are the stages of succession | Grass - bushes/shrubs - Pine Trees - All trees |
| What is an invasive species | Organism not native to the area (not originally from area) and can be very harmful to the ecosystem |
| List all the effects that an invasive species can have on an ecosystem: | Mess up food chains/food webs ("all things are linked") because... -Out-complete native species for food, space, water, shelter, etc. -Often have no natural predators in the new environment and therefore spread quickly -May cause disease -May eat the |
| Define symbios | Organisms involved in a close relationship that may be harmful or helpful |
| Define parasitism | Relationship between two different kinds of organisms in which one lives in or on the other and causes it harm |
| Define decomposer | absorbs nutrients from dead/decaying organisms |
| Define competition | Struggle for resources, mates, etc. in the environment |
| Define Scavenger | Animal that eats already dead animals |
| Define producer | Base of the energy pyramid |
| List 4 limiting factors of animal | -food -water -space -mates |
| Define sun | Energy source for most ecosystems |
| Define invasive species | non-native organism to an area; may disrupt food chains; often hurts native organisms; often has no natural predators |
Created by:
KellyTravis
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