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wh 7th grade science
wh 7th grade science notes for mrs. frerichs
| Question | Answer |
|---|---|
| bio | life |
| ology | study of |
| marine | ocean |
| ist | person |
| herpe | reptile |
| bota | plants |
| ocean | ocean |
| graphy | to chart |
| ornith | birds |
| ichty | fish |
| re | again |
| astro | space |
| scientist use | method |
| scientific methods | the way in which scientist follow steps to answer questions and solve problems |
| hypothesis | is a possible explanation or answer to a question |
| living things have | cells |
| cell | the basic unit of life |
| unicellular | means one cell |
| multicellular | means many cells |
| living things sense and respond to _____ | stimuli |
| stimuli | a change that affects the activty of an organism |
| homeostasis | to mantain a stable internal condition |
| all living things ______ | reproduce |
| asexual reproduction | you repduce with one parent |
| sexual reproduction | 2 parent off spring |
| all living thing have | dna |
| dna stands for | deoxyribonuleic replaic acid |
| heredity | passing of trates from one geration to the next |
| metabolism | the sum of all the chemical reactions in your body |
| adaptation | to make organisms suitable to a way of life |
| the organism needs _______, ________, _______, and ________ | food water air shelter |
| cells are made up of approxitmately _____% water | 70 |
| you cAn go ___ days without water | 3 |
| most chemical reactions require _____ | water |
| you can go ______ weeks without food | 3 |
| producers | organisms that makes its own food |
| hetero | different |
| ______ is another name for producers | autotroph |
| consumers | they depend on other organisms for food |
| auto | self |
| troph | feed |
| ______ is another name for consumers | heterotroph |
| de | down |
| decomposers | get food by breaking down dead organisms or animal waste |
| molecule | two or more atoms put together |
| compound | two or more different molecules put together |
| organic | living or once living |
| inorganic | never living |
| macromolecule | very large molecules |
| there are ___ different amino acids | 20 |
| enzyms | speed up chmemical rections |
| _____ makes animals crunchy | chitin |
| herbivores | eat plants |
| carnivores | eat meat |
| omnivores | eat plants and animals |