Human Use/Impact
List 5 uses of trees that humans get from trees
wood for homes, fires, shelter, paper, provide jobs
What is one use of plants by humans?
medicine, food, shade
What are 2 common characteristics of trees?
What is the leaf margin?
outside edge
What are the 3 cycles we learned in class?
oxygen, nutrient, water
Distinguish between clear cutting and selective harvesting
clear cutting is cutting/removal of all trees in an area
selective is removing only a few select trees from an area
What is an example of a secondary consumer?
wolf, coyote, bear, human
What does a tree cookie tell us?
age of tree and growth conditions
What is the leaf midrib?
veins on leaf
What process do plants use to create food?
photosynthesis
What is one of the two effects clearing for forest development has on the environment?
Many hectares have been cleared destroying animal habitats resulting in species leaving or extinction
Atmosphere is affected as CO2 levels rise with reduction of trees
What are the definitions of producer, consumer, decomposer?
produce - grass, consumer eats produce, decomposer breaks down dead material
If tree rings are really close together what would that likely mean?
tough growth conditions
What is the difference between deciduous and coniferous trees? Provide and example of each
deciduous fall off coniferous are from cone bearing trees
Explain the water cycle
transpiration, run off, condensation, evaporation, precipitation
Name 2 impacts humans do to enhance trees and forests. Name 2 negative impacts humans do to threaten trees and forests
enhance - not littering, harvesting proper trees (amount and area), provincial parks, not feeding wildlife
threaten - air pollution, forest fires, roads, expanding cities, over hunting or spraying of chemicals
What are two effects trees and forests have on animals?
food and shelter
What part of the tree is so important that if it is damaged the tree will die?
phloem
Compare/contrast the different types of leaves
simple, compound, double compound
Explain the nutrient cycle
produce, consumer, decomposer
Explain the 3 types of reforestation/regeneration of trees and forests
natural regen, direct seeding, planting seedlings
Draw an example of a food chain, food web, and a food pyramid on the white board. What do the arrows represent?
energy transfer
Explain what the purpose of the xylem and phloem are?
phloem transports sugars and nutrients down through rest of tree
Compare/contrast the different leaf arrangements
opposite alternate whorled basal
Explain the oxygen cycle
photosynthesis and respiration