STAAR Biology Practice Test

Quiz
•
Science
•
9th Grade
•
Hard
+14
Standards-aligned
Lisa Thompson
Used 1+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An illustration of how a particular DNA mutation will most likely affect the polypeptide produced is shown. What type of mutation is illustrated?
insertion
translocation
substitution
deletion
Answer explanation
The original strand has a GTA coding for His. The mutated strand has a GGA which codes for Pro instead. The T got switched for a G, so this is a substitution.
Tags
NGSS.MS-LS3-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For an enzyme to be able to catalyze a reaction, the active site must -
cause the enzyme to be destroyed in the reaction
increase the activation energy level
be occupied by an inhibitor
have a complementary shape to the substrate
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The DEFENSES of 2 flightless birds that live in different habitats are shown. How do the wings of the Gentoo penguin and the legs of the ostrich provide an advantage in their habitat?
Allows them to find prey
Allows them to escape from predators
Allows them to control body temperature
Allows them to be camouflaged in their environments
Answer explanation
You can narrow down the answer choices to either "finding prey" or "escaping predators." Note that the question says the birds need DEFENSES and are FLIGHTLESS. Defenses are used to escape predators, not to hunt.
Tags
NGSS.MS-LS4-4
4.
DRAG AND DROP QUESTION
1 min • 5 pts
Photosynthesis takes in (a) and spits out (b) . Cellular respiration takes in (c)
light energy
chemical energy
Tags
NGSS.MS-LS1-6
NGSS.MS-LS1-7
5.
DROPDOWN QUESTION
1 min • 5 pts
Overfishing is when fish are caught faster than they can reproduce, causing the decline of fish populations. Overfishing (a) the stability of the ecosystem by (b) .
increases
disrupting food chains
decreases
increasing competition for limited resources
allowing prey populations to overproduce
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-2
NGSS.MS-LS2-3
NGSS.MS-LS2-4
6.
REORDER QUESTION
1 min • 1 pt
Reorder the following traits from oldest to youngest.
four limbs
vertebral column
hair
retractable claws
sharp teeth
Tags
NGSS.MS-LS4-1
NGSS.MS-LS4-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Based on the cladogram, the ancestral species most likely had...
a vertebral column
a vertebral column and hair
sharp teeth and retractable claws
ability to purr
Answer explanation
Ancestral = oldest species that gives rise to the rest of the species. The ancestral species would lie to the far left, where only the vertebral column is.
Tags
NGSS.MS-LS4-1
NGSS.MS-LS4-2
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