Question | Answer |
Who developed Gram Staining in 1884? | Hans Christian Gram |
Gram Staining is composed of what two parts? | primary crystal violet stain and counter safranin stain |
What are the two major classes of bacteria? | Gram + (purple) and Gram - (pink) |
Cell walls do what? | strength/stability and protection |
How many methods in the gram staining process? | 3 |
study of life | biology |
basic unit of life | organism |
interaction of living and non-living; study of ecosystem | ecology |
bare necessities of life | water, nutrients, and energy |
How can organisms receive energy? | self produced or stolen |
produce energy for the rest of the web of life | producers |
primary consumers | herbivores (1*) |
secondary consumers | carnivores (3*) |
eat dead/decaying organisms | scavengers |
return nutrients to soil and get energy from the sun; complete the movement of matter; without these, soil would be nutrient free | decomposers |
the sun provides almost all of this to Earth as light | energy |
light energy ---> chemical energy (sugars) | photosynthesis |
a complex interaction to food chains | food web |
energy moves with arrows; matter stores energy (sugars, fats, proteins) | matter and energy |
community and abiotic enviroment in a specific area | ecosystem |
all ecosystems in the world | biosphere |
an organism's role in a community (defined by what it eats, what eats it, etc.) | niche |
location that an organism lives | habitat |
bear eats slamon | direct interaction |
throw away plastic ring -> ring ends up in ocean -> animal gets trapped in it -> animal is seriously injured/dies | indirect interaction |
relationships are not always equal | community interactions |
prey harmed to benefit predator | predator-prey |
parasite injures the host to get nutrients; parasite may weaken or kill host | parasite interactions |
one example of symbiosis | parasitism |
2 or more organisms live in direct physical contact | symbiosis |
example of symbiosis | lichens |
microscopic producers provide energy | lichens |
consumers provide nutrients to producers | algae |
mutually beneficial | relationship |
allows balance to be maintained; harder for individuals to access resources | communal benefits of competetion |
too many grasshoppers -> less marsh grass live and snails to die out -> snakes have less food | excessive competition |