STAAR Ecology

Quiz
•
Science
•
7th Grade
•
Hard
+4
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Leaf-cutter ants harvest leaves and carry them to fungi that convert
plant material into a usable form for the ants to digest. The fungi
depend on the leaves for nutrients. The ants also produce an antibiotic
on their bodies that helps protect the fungi from harmful bacteria.
Which of these explains the relationship between the leaf-cutter ants
and the fungi?
Predation, because the ants feed on the fungi
Mutualism, because both the ants and the fungi benefit from
each other
Competition, because both organisms consume the same resource
for energy
Commensalism, because the ants receive energy from the fungi
and the fungi are unaffected
Tags
NGSS.MS-LS2-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Students designed an experiment to model the carbon cycle. The
students combined water and carbon dioxide-producing disks in a
sealed flask. The flask represented Earth’s atmosphere, and the lamp
represented the sun. Which component can be added to the flask to reduce the
concentration of carbon dioxide in the model atmosphere created
by the disks?
Bacteria to use carbon during nitrification
Plants to absorb carbon in the process of photosynthesis
Snails to use carbon through cellular respiration
Mushrooms to absorb carbon during decomposition
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
On average, how much energy is lost between each trophic level?
0%
10%
90%
100%
Tags
NGSS.MS-LS2-3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a Central Texas grassland, the producers incorporate 12,000 kJ of
energy from the sun into their tissues. About how much energy would
be incorporated into the tissues of herbivores?
12,000 KJ
1,200 KJ
10,080 KJ
1,008 KJ
Tags
NGSS.MS-LS2-3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
White clovers, Trifolium repens, are plants that are native to Europe
and Central Asia and are able to produce the poison cyanide within
their cells. Skunk cabbage, Symplocarpus foetidus, is a plant that
is native to eastern North America and can produce a chemical that
makes it have a strong, foul odor and bitter taste.
The chemicals produced by both the white clovers and skunk
cabbages are adaptations that allow them to —
attract more pollinators
survive a long-term drought
protect against herbivores
grow better in colder habitats
Tags
NGSS.MS-LS4-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In some coral reefs, a symbiotic relationship exists between pygmy
seahorses and sea fans. The pygmy seahorse can wrap its tail around
the branches of the sea fan. This allows the pygmy seahorse to be
camouflaged within the sea fan, protecting it from predators. The
pygmy seahorse does not harm or benefit the sea fan while it grasps
the branches with its tail
Predator/prey
Mutualism
Commensalism
Parasite/host
Tags
NGSS.MS-LS2-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
After a wheat field is cleared, wild grasses and weeds begin growing.
This process is considered —
primary succession because pioneer species appear
primary succession because there are no large trees
secondary succession because soil is already present
secondary succession because the field contains inorganic matter
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