trex

.pdf

School

Indiana University, Bloomington *

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Course

L112

Subject

Biology

Date

Apr 25, 2024

Type

pdf

Pages

8

Uploaded by DeanDangerRaccoon25 on coursehero.com

Webquest: What did T-Rex Taste Like? Name: Gianna Walker Go to: http://www.ucmp.berkeley.edu/education/explo rations/tours/Trex/index.html and click on Student Start. Fill in the handout as you go. Folder 1 1. Lineage might have been a new term for you. Which is the best definition of lineage? a. A single line showing age. b. A continuous line of descent. c. A set of parallel lines 2. Within this folder, you compared the history of a single family to the history of all life. What are some things that they have in common? a. Both have a point of common ancestry. b. In both, descendants inherit features from previous ancestors. c. In both, descendants more closely resemble their recent ancestors than more distant ancestors. d. All of the above. e. None of the above. Folder 2 1. Label distinct history, shared history, and common ancestor. Red box = distinct history. Blue box = shared history . The green dot = common ancestor. 2. Label the area that shows the best common ancestor of tuna and parrot. The area that shows the best common ancestor of tuna and parrot is the intersection between the baseline and the second to last branch.
3. Label the most recent common ancestor of A and C with a star. B and C with a heart. Label the shared history of A, B, and C. Green box. Label the unique history of B. Red box. Folder 3 1) Which is more closely related to caimans—hares or parrots? a) Hares b) Parrots 2) Cladograms represent hypotheses about evolutionary relationships and who is more closely related to whom. 3) Fill in the table by listing and describing the derived trait for each letter. Letter Derived Trait Describe A Vertebrae The skeletal units of the spinal column or backbone, that protects the spinal cord and support the body. B Bony Skeleton Although bone tissue evolved earlier a true bony skeleton does not appear until the ancestors of bony fishes and consists of hardened bone, not cartilage C Four Limbs Possessing four limbs for terrestrial Locomotion unless secondarily lost or modified for other types of locomotion as in the flippers of whales or wings of bats animals with four limbs are called tetrapods D Amniotic Eggs The egg can be laid on land due to the presence of a fluid-filled amniotic sac that cushions and protects the developing embryo.
E 2 Skull openings Two additional openings besides the eyes and nostrils on the side of the school behind the eyes animals with such openings are called diapsids. F Hair Find filaments growing from the skin consisting of special epidermal cells and providing insulation 4) Which features do humans, hares, caimans, and parrots share that the other three lineages did not inherit? a) Bony skeleton b) Hair c) Amniotic egg Folder 4 1. What does the (+) mean? The feature is found in the organism 2. What does the (0) mean? The feature is not present in the organism 3. What does the (-) mean? The feature cannot be marked because it does not apply to the organism 4. What does a (?) mean? It is undetermined whether the feature is present or not.
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