Week 5

Question 1

amniotes

Answer 1

animals that can lay amniotic eggs

Question 2

amniotic eggs

Answer 2

-hard shells to try and protect them
-watertight but not airtight
-gas exchange limits how big eggs can be

Question 3

lines of arrested growth (LAGS)

Answer 3

show the growth and rest cycles of bone development in dinosaurs

Question 4

Lamellar bone

Answer 4

young and growing bone that is highly vascularized

Question 5

Haversian bone

Answer 5

secondary formation after Lamellar bone
-this is more dense and strong and is the outside layer of adult bone
-slows growth making a series of very close LAGS called the eternal fundamental system

Question 6

external fundamental system

Answer 6

closely spaced series of LAGs is Haversian bone

Question 7

ontogenetic changes

Answer 7

changes in the body as a baby matures

Question 8

Non-isometric ontogenetics

Answer 8

changes in body that are not just from “getting bigger” and towards adult form
-like crest or horn development

Question 9

isometric ontogenetic

Answer 9

changes in absolute size but not proportions (just getting bigger)

Question 10

Medullary bone

Answer 10

a bone formed in females when peeping for eggshell development it is for storage