Student Exploration: Cladograms
Vocabulary: adaptation, amino acid, amnion, artiodactyla, bipedal, clade, cladistics, cladogram,
convergent evolution, evolution, flower, mammary glands, molecular, morphological,
multi
...
Student Exploration: Cladograms
Vocabulary: adaptation, amino acid, amnion, artiodactyla, bipedal, clade, cladistics, cladogram,
convergent evolution, evolution, flower, mammary glands, molecular, morphological,
multicellular, parsimony, sagittal crest, phloem, selenodont teeth, SNP, xylem
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. Look at the images below. Which two organisms do you think are most closely related?
Deer and turtle
Both are chordates, vertebrates
Gizmo Warm-up
Cladistics is a method of hypothesizing the evolutionary
relationships between species. A cladogram is a branching diagram
that illustrates these relationships. For example, the cladogram on the
right shows that deer are more closely related to turtles than to worms.
In the Cladograms Gizmo, you will use morphological (physical
characteristics) and molecular data to create cladograms.
To begin, make sure Plants is selected for the Organism group and Morphological is selected
for the Data type. Click on one of the characteristics to the left of the table on the TABLE tab.
Information about the characteristic will be shown on the ORGANISM tab.
Using the information on the ORGANISM tab, describe each of the characteristics below.
Name: Zahra
Date: May05, 2020
Date:
Worm Deer Turtle
2. Why do you think so ?2018
• Xylem and phloem: xylem – the vascular tissue of plants that transports water and nutrients
up from the roots to the rest of the plant
▪ Phloem – the vascular tissue in plants that conducts sugar and other
metabolites down from the leaves to the roots.
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