Science 19
Terms
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- Transports needed materials to body cells and removes wastes
- Cardiovascular system
- supports and protects the body; works with muscles to enable movements
- Skeletal System
- enables body to move
- Muscular system
- protects the body, keeps water inside, and helps sense the extermal enviornment
- skin
- breaks down food and absorbs the broken-down material
- digestive
- creates offspring; determines male and female characteristics
- reproductive
- produces chemicals called hormones that help control homeostasis
- endocrine
- processes information from body's enviornment; directs most body functions
- nervous
- oxygen in- carbon dioxcide out
- repiratory
- removes wastes; helps regulate water in body
- excretory
- fights diseases
- immune
- parts that work together
- system
- group of cells perform same function
- tissue
- group of tissues perfom same function
- organ
- group of organs perfom same function
- organ system
- windpipe
- trachea
- structure that oxygen moves from air into the blood
- alveolus
- muscle invovled with breathing
- diaphram
- in small intesting to absorb nutrients from food, which blood then carries throughout body
- villi
- balance: stable
- equilibrium
- internal enviornment kept stable in times of change in the external enviornment
- homeostasis
- controls body temperature and gluclose
- negative feedback
- endocrine system: effects activity of tissue or organ
- hormone
- from higher concentration to lower concentration
- diffusion
- diffusion of water
- osmosis
- living/non-living in an enviornment
- ecosystem
- role in enviornment
- niche
- struggle to survive
- competition
- process hunt and kill animals
- predation
- the killer
- predator
- the hunted
- prey
- close relationships between animals where at least one benefits
- symbiosis
- both benefit
- mutualism
- one benefits
- commensalism
- one helped/ other not harmed or helped
- parasitism
- lives on or in another animal
- parasite
- the animal a parasite lives in
- host
- True/False: The cardiovascular system brings waste carbon dioxcide in the blood to the lungs
- True
- True/False: Gluclose is a hormone that regulates the body's production of insulin
- True
- True/False: A group of organs that work together to perform a specific function is a connective tissue.
- False: organ system
- The (blank) adjust the amount of water in the blood by changing the concentration of water excreted in urine
- kidneys
- Shivering is an example of (blank).
- Natural selection