Flashcards in CHAPTER 1-4 Deck (34)
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What are the 6 characteristics of living things ?
Reproduction, growth, development, orderly structure, adaptation, evolution
1
What is homeostasis?
Balance of our internal environment
2
What is the scientific method?
-Problem/question
-Research
-Hypothesis
-Experiment
.Collect data
-Analyze data
-conclusions
3
What is biology?
The study of living things
4
What is ecology?
How organisms interact with their environment
5
What is the difference between quantitative and descriptive methods of observation?
Quant.= numbers
Descriptive=observation
6
What part of the planet supports living things?
Biosphere
7
What are abiotic factors and give examples
Nonliving components in the biosphere- rocks, air, soil, temperature
8
What are biotic factors and give examples
Living components of the biosphere-animals, plants
9
What are the ecological levels of organization?
Organisms
Population
Community
Ecosystem
Biosphere
10
Where an organism lives is its_____
Habitat
11
What is a niche?
Job or role an organism has in its ecosystem
12
What is symbiosis?
Relationship between two different species where at least one organism benefits
13
What is commensalism ?
One species benefits, one is neither harmed nor benefitted
14
What is mutualism?
Both species benefit
15
What is Parasitism ?
One benefits and the other is harmed
16
What are producers?
Plants, produce their own energy
17
What are consumers?
Eat producers and other consumers, animals
18
What are the 5 different types of consumers?
Herbivores, carnivores, omnivores, scavengers, decomposers
19
What are other names for consumers and producers?
Heterotrophs and autotrophs
20
What are the three different ecology pyramids?
Pyramid of numbers, energy, biomass
21
What is a Trophic level?
Each stage in the ecological pyramids
22
Which pyramid shows amount of organisms in each Trophic level?
Numbers
23
Which pyramid shows the measurements in kg?
Pyramid of biomass
24
Which pyramid shows the % of energy in each Trophic level?
Energy
25
What are examples of limiting factors?
Weather, food, water, shelter
26
What's range of tolerance?
Ability of an organism to withstand fluctuations in Biotic and abiotic factors
27
What is the difference between a food chain and web?
Food web: ALL of the food relationships in an ecosystem
Food chain: autotrophs to heterotrophs
E.g. - plant-> grasshopper-> bird
28
What is an S shaped growth graph?
Reached climax community
28
