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science final barker

packet 1

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