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Char. Living Things
Raczkowski- Characteristics of Living Things
Question | Answer |
---|---|
cell | a membrane covered structure that contains all of the material necessary for life |
stimulus | a change in an organism's environment that affects the activity of an organism |
response | a reaction due to a change in an organism's environment |
hemeostasis | maintenance of a stable internal environment |
asexual reproduction | a single parent produces offspring that are identical to the parent |
sexual reproduction | two parents produce offspring that share the characteristics of both parents |
DNA | hereditary material that controls all the activities of a cell |
Heredity | transmission of characteristics fron one generation to the next |
metabolism | the sum total of all the chemical activities of an organism |
producer | organisms that can make their own food |
consumer | organisms that must eat other organisms to get food |
decomposer | organisms that get their food by breaking down the nutrients in dead organisms or animal wastes |
protein | the second most abundant material in a cell |
carbohydrate | source of energy, made of sugars |
lipid | include fats and oils |
nucleic acid | DNA, the blueprint to make proteins |
ATP | major fuel source for all the cell's activities |
spontaneous generation | the belief that life just appears |
cold-blooded | animals that have a body temperature that changes with the environment |
warm-blooded | animals that have a constant body temperature |
multi-cellular | more than one-celled organism |
uni-cellular | one celled organism |
Name 3 one-celled organisms | hydra, paramecium, amoeba |
photosynthesis | the process that converts the energy in sunlight to energy in stored food |
List the six characteristics of all living things | cells, sense and respond to change, reproduce, energy, DNA, grow and develop |
Four necessities of living things | food, water, air, a place to live |
Six elements of living things | carbon, oxygen, hydrogen, nitrogen, sulfur, phosphorus |