Middle School science
1. Which of the following is NOT one of the major interactions between organisms in an ecosystem?
a.
submission
c.
competition
b.
symbiosis
d.
predation
Please select the best answer from the choices provided
A
B
C
D
2.
Which of the following factors does NOT limit population growth?
a.
species
c.
space
b.
carrying capacity
d.
food
3.
Which disturbance would result in primary succession?
harvesting wheat by using a combine harvester at the end of the growing season
controlled burning to stimulate the growth of forest trees such as sequoia
the formation of Surtsey, a volcanic island off of the southern coast of Iceland
the effect of a large herd of elephants on the grasses and shrubs in an area4.
If you count 20 beetles in a garden measuring 5 square meters, the population density of the beetles is
a.
100 beetles per square meter.
b.
20 beetles per square meter.
c.
5 beetles per square meter.
d.
4 beetles per square mete
5.
Mutualism, commensalism, and parasitism are the three types of
a.
symbiotic relationships.
b.
predation.
c.
competition.
d.
prey adaptations.
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