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Description
Flashcards by Ella Ivanovici, updated more than 1 year ago
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Created by Ella Ivanovici
over 7 years ago
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| Question | Answer |
| what is ecology | the branch of biology that deals with the relation of organisms with each other and their physical surroundings |
| name the 5 levels of organization ecologists use | 1. organism 2. population 3. community 4. ecology 5. biosphere |
| what is an organism | an individual animal, plant or single celled life form living |
| what is an ecosystem | a biological community of interacting organisms |
| name the seven characteristics of living things | 1. they are all made from the same basic chemical ingredients 2. they are composed of cells 3. they require water and a source of energy 4. they can reproduce and grow 5. they have a limited life span 6. they can respond to their surroundings 7. they have the ability to move |
| what is the difference between biotic and abiotic | biotic is living and abiotic is not living |
| what is a habitat | the environment in which the organism usually lives |
| what are predator and give an example | predators are organisms that hunt an eat each other for example fox eating a rabbit |
| what are prey and give an example | prey are organisms which are hunted and killed and consumed by other organisms for example a gazelle is the prey of a cheetah who is hunting it |
| what is a producer | they are plants because they produce their own food inside themselves they are the first organisms in the food chain |
| what are consumers | a consumer is an organism that eats food provided by plants or animals |
| what is a primary consumer | a primary consumer is a one that feeds on producers |
| what is a secondary consumer | a consumer that feeds on the primary consumer |
| what is a tertiary consumer | a tertiary consumer is a consumer that feeds on the secondary consumer |
| what is the difference between autotrophs and heterotrophs | autotrophs produce their own food and using photosynthesis and heterotrophs cannot synthesize their own food so they rely on other organisms |
| what is an omnivore | an omnivore is an organism that eats both plants and animals |
| what is a scavenger | scavengers are organisms that feed on bodies of animals that are already dead |
| what is a carnivore | a carnivore is an organism that only eats other animals |
| what is a herbivore | a herbivore is an organism that only eats plants |
| what is a food chain and explain how it works | a food chain shows a series f events when one organism eats another and obtains energy must always begin with the producer then the primary consumer and then the tertiary consumer |
| what is a food web and explain how its works | a food web is a combination a food chains. food webs are for organism that eat more than just one food for example a rabbit doesn't only eat grass it also eats berries |
| what do the arrows in a food chain or web represent | the arrows point towards the animal that is getting the energy from another organism |
| what is photosynthesis | Chlorophyll absorbs the sun’s energy. It is this energy that is used to split water molecules into hydrogen and oxygen. Oxygen is released from the leaves into the atmosphere. Hydrogen and carbon dioxide are used to form glucose or food for plants. |
| during photosynthesis what do plant release during the day | oxygen (o2) |
| during cellular respiration what do plants release during the night | carbon dioxide (CO2) |
| wat is the chemical formula for photosynthesis | 6CO2 + 6H2O -> C6H12O6 + 6O2 |
| what is the chemical formula for cellular respiration | C6H12O6 + 6H2O + 6C02 + energy (ATP) |
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