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Concepts 1: Energy & Matter Flow in the Biosphere; Biodiversity
TEKS: 2A, 2D, 3C, 3D, 9D, 11D, 12A, 12D, 12E
Concept Questions
1. Review the 6 levels of organization. Give an example for each level.
2. What are the two sources where autotrophs obtain their energy? Why are autotrophs
referred to as producers?
3. What are heterotrophs? Why do we call them consumers?
4. List the different types of heterotrophs? On what basis to we classify them?
5. Compare and contrast a food chain with a food web.
6. Explain the term “trophic level”
7. What is the 10% rule as it relates to energy transfer in a food chain?
8. List the three most important nutrient cycles. Why is each one crucial to life on earth?
9. What are some of the processes that release carbon to the atmosphere or ocean? What are
some processes that remove carbon from these sources?
10. What is the importance of Nitrogen “fixation” to living creatures?
11. Explain ways that an algal bloom might negatively impact an ecosystem or biome?
12. List the major types of community interactions. Explain the different types of symbiotic
relationships.
13. List the major threats to biodiversity. Explain how each threat harms the biosphere and
what remedies, if any, we are using to curb the harmful effects?
Resources: Prentice Hall Biology: Chapters 3-6, class notes and labs
Houghton Mifflin Biology: Chapters 13 -16, class notes and labs
Chapter 13 Assessment
Due:
Test:
Quizzes are frequent and are not announced. When the due date arrives or the
topic has been discussed, it’s testable.
Vocabulary: Please remember this is not a vocabulary test, you will be expected to apply these
words not just know the definitions.
photosynthesis
autotroph
producer
chemosynthesis
heterotroph
sulfur oxide
carnivore
consumer
herbivore
omnivore
detritivore
nitrogen oxide
food web
decomposer
food chain
trophic level
energy pyramid
biomass
biogeochemical cycle
acid rain
condensation
precipitation
evaporation
transpiration
denitrification
nutrient
nitrogen fixation
limiting nutrient
algal bloom
habitat
competitive exclusion principle
niche
predation
symbiosis
mutualism
commensalism
ecosystem diversity
parasitism
biodiversity
species diversity
genetic diversity
extinction
endangered species
abiotic factors
biotic factors
population
ecosystem
individual
species
biosphere
community
biome
habitat fragmentation
biological magnification
ozone layer
invasive species
conservation
global warming
specialist
generalist
carbon cycle
keystone species
nitrogen cycle
Prefixes, suffixes, and roots:
bio-logy
cohesion
adphytozooterraaquaautophotochemo-
-synthesis
homocarndetrit-troph
heteroherbomni-vore
geo-