5 Written Questions

1. muscular organ in birds and earthworms that crushes food
2. part in snake venom that destroys red blood cells and disrupts clotting
3. tissue in leaves where thylakoids are found
4. channel containing nerves and blood vessels making up compact bone
5. plant hormones that promote cell division

5 Multiple Choice Questions

1. lower chamber(s) of the heart
   1. mesophyll
   2. milt
   3. heterocyst
   4. ventricle
2. bacteria that produces methane gas without oxygen
   1. macrophage
   2. hemotoxin
   3. methanogen
   4. mesophyll
3. large white blood cell that engulfs bacteria
   1. methanogen
   2. mesophyll
   3. macrophage
   4. capsid
4. fluid containing sperm in fish
   1. capsid
   2. xylem
   3. milt
   4. gizzard
5. name of medicine used in the treatment of heart disease
   1. gizzard
   2. digitalis
   3. hemotoxin
   4. milt

5 True/False Questions

1. heterocyst → part in snake venom that destroys red blood cells and disrupts clotting

   True        False

2. imprinting → behavior process that causes young animals to follow the first moving thing seen

   True        False

3. capsid → protein covering that surrounds a virus

   True        False

4. invertebrate → animal without a backbone

   True        False

5. xylem → fluid containing sperm in fish

   True        False