Title: OCR Document
Author: Readiris
Last saved by: Sandoz
Company: I.R.I.S.

Life Science ch 14
Name _________________
Define the following    Key Science Words

a. amniotic egg 

b. amphibian 

c. biological indicator

d. cartilage

e. chordate

f. dorsal hollow nerve cord

g. ectotherm 

h. endoskeleton

i. endotherm 

j. estivation 

k. fin

1. fish

m. gill slit

n. hibernation 

o. notochord 

p. reptile

q. scale

Match each phrase with the correct term from the list of Key Science Words.
______1. dorsal structure that becomes the backbone in vertebrates
______2. ectothermic land and water animal 
______3. the internal skeleton
______4. tough, hexible tissue
______5. every vertebrate is also this
______6. inactivity in winter
______7. inactivity in summer
______8. an ectotherm with dry skin
______9. fanlike steering structure in fish 
______10. species that are sensitive to changes in the environment