Shared Flashcard Set

Details

Title

chordata

Description

N/A

Total Cards

Subject

Biology

Level

7th Grade

Created

04/24/2012

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Additional Biology Flashcards

Term

WHat are the 4 characteristics of all chordata?

Definition

1. dorsal tubular nerve cord- became spinal cord
2. notochord- became spinal column
3. pharangeal pouches- became gills
4. tail

Term

describe the endoskeleton

Definition

made of living cells and grows with the organism

Term

what is an ectotherm?

Definition

an organism that changes its body temp based on the temp of the external environment (cold-blooded)

Term

what is an endotherm?

Definition

organism that generates its own body heat internally by its own metabolism