
Unit 4B Pt2
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Biology
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9th - 12th Grade
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Medium
+3
Standards-aligned
Jennifer Alber
Used 6+ times
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25 Slides • 20 Questions
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Unit 4B Pt2
Dichotomous Keys,
Phylogenetic Trees & Cladograms
Standards: HS-LS2-1, 2, 6, & 7)
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
This diagram shows a phylogenetic tree of six species based on amino acid similarities.
Which two species are the least closely related?
V and VI
III and IV
I and VI
II and III
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Multiple Choice
A scientist sees the organism shown to the right in an aquarium and uses a key to help classify the species.Based on the key what species did the scientist observe?
Aulostomus
Gymnothorax
Bothus
Aetobatus
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Multiple Choice
What is the purpose of using a dichotomous key?
to identify organism
to determine the evolutionary relationship between two organisms
to locate the environment for each species
to create a new kingdom
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Multiple Choice
According to this phylogenetic tree, which creature is the least related out of all pictured?
Fish
Frog
Salamander
Human
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Multiple Choice
All the animals to the right of the salamander would have the common characteristic of...
Fur
Claws or nails
Lungs
Jaws
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Multiple Choice
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Multiple Choice
Which group of animals on this tree are most closely related to birds?
Saurischian dinosaurs
Ornithischian dinosaurs
Crocodiles
None of these are related to birds
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Multiple Choice
On the cladogram, which organism is the closest relative of the parrot?
Frog
Hare
Caiman
Parrot
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Multiple Choice
Which organisms from this cladogram are more closely related lizard and salamander OR Lizard and Mouse?
Lizard and Salamander
Lizard and Mouse
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Multiple Choice
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Multiple Choice
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Multiple Choice
According to the cladogram, which of the following is NOT a derived characteristic?
light bones
Allosaurus
down feathers
3-toed foot; wishbone
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Multiple Choice
Which two groups of organisms have the MOST genetic DIFFERENCES?
rotifers and nematodes
mollusks and annelids
mollusks and arthropods
echinoderms and chordates
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Multiple Choice
The diagram shows a cladogram of six species based on amino acid similarities. Which two species are MOST CLOSELY related.
I and II
II and IV
I and V
V and VI
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Multiple Choice
What is a dichotomous key used for in science?
To organize biomes
Classify organisms
Identify bacteria only
None of these
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Unit 4B Pt2
Dichotomous Keys,
Phylogenetic Trees & Cladograms
Standards: HS-LS2-1, 2, 6, & 7)
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