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ecology & digestion
help to study for digestion and ecology
| Question | Answer |
|---|---|
| two major groups of decomposers are? | bacteria and fungi |
| what is the first organism in a food chain? | producer |
| energy is transferred to what first? | each organism that eats a producer(herbivore) |
| what does a food chain show? | 1 possible path along which energy can move through an eco. |
| what does a food web consist of? | many overlapping food chains in an eco. |
| where is the stomach loocated? | abdomen |
| where is bile produced? | liver |
| why dosen't your stomach burn because of the hydrochloric acid? | stomach is lined with mucus |
| dijestive juice contains what enzyme? | pepsin |
| prescence of villi in the small intestine does what? | increases surface area of small intestine |
| what are 3 main types of symbiotic relationships? | mutualism,paratism and commensalism |
| what kind of digestion most occurs in stomach? | mechanical |
| what is absorption? | process which nutrient molecules pass through wall of system to blood |
| where are enzymes and secretions produced | small intestine, liver, and pancreas |
| what stimuli causes vomitting? | irritation of digestion system |
| what are the sources of all food in an ecosystem? | producers |
| an organisms energy role in an ecosystem maybe that of what? | producer, consumer or decomposer |
| organisms that carry out photosynthesis are called what? | autotrophs |
| while getting energy for their needs, decomposers do what? | return simple molecules to enviornment |
| an organisms energy role is determined by what? | how it obtains energy and how it interacts with other living things in its ecosystem |
| an average adults stomach holds about how many liters of food? | 2L |
| what does the secretion, bile do? | breaks down fat |
| waste material is eliminated through what? | anus |
| energy from sunlight is converted to what by producers? | sugar and starch molecules |
| organisms uses suns radiant energy to turn what into chemical energy stored in molecules? | water and carbon dioxide |
| what is symbiosis? | close relationship between two species that benefits at least one species |
| why is commensalism not common in nature? | usually either helped or harmed little |
| why do mites live in only one moths ear? | moths hearing would be badly affected(if mite was in both ears) and would be caught by bat |
| what does a parasite do a predator dosen't? | kill the organism it feeds on |
Created by:
purplegirlrox
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