Worksheetsscience gr10 2.2
Total questions: 7
Worksheet time: 4mins
Which of the following allows the flow of energy through an ecosystem to happen?
abiotic factors
cycling of nutrients
evaporation
predation
2.Which of the following would be the easiest way to diagram predatory and parasitic relationships between several species?
biomass pyramid
food chain
food web
numbers pyramid
Referring to Figure 2-1, the coyotes would be considered ____.
herbivores
third-level consumers
second-level consumers
decomposers
In the energy pyramid shown in Figure 2-3, which level has the smallest number of organisms?
fox
birds
grasshoppers
grass
Which location would most likely hold autotrophs that derive their energy from chemical compounds?
swamp sediments
antarctic pools
grassland soil surface
desert rocks
How long are food chains?
four steps long
three steps long
it varies with day length
it varies with the ecosystem
Referring to Figure 2-1, suppose 10, 000 units of energy are available at the level of the grasses. What is the total number of energy units lost by the time energy reaches the coyote?
90 units
990 units
9900 units
9990 units
