Download Bio Test 12 Key

Biology Test 12, 14 March 2014
1. Matching: (8 pts)
a. vi Exoskeleton
b. ii Molt
c. iv Cephalothorax
d. i Compound eye
e. v Open circulatory system
f. vii Statocyst
g. iii Gonad
i. An eye made of many lenses, each with a very limited scope
ii. To shed an old outer covering so that it can be replaced with a new one
iii. A general term for the organ that produces gametes
iv. A body region composed of the head and thorax fused together
v. A circulatory system that allows the blood to flow out of the blood vessels and into various
body cavities so that the cells are in direct contact with the blood
vi. A body covering, typically made of chitin, that provides support and protection
vii. The organ of balance in a crustacean
2. Identify letters b, c, e, and j in the following picture. For letters b, e, and j briefly state
the purpose of each structure. (4 pts)
b) antennules, sense of balance, rudimentary sense of taste and touch
c) cephalothorax
e) telson, used for swimming
j) chelipeds, used for defense and grabbing prey
3. Identify letters b, c, d, f, j, and n. Briefly state the purpose of each structure. (6 pts)
b) brain ganglia, controls the ventral nervous system
c) stomach, grinds and sorts food
d) gonad, reproductive system
f) pericardial sinus, cavity where blood collects prior to entering the heart
j) digestive glands, secretes digestive enzymes to complete the digestive process
n) green gland, filters the blood of impurities and wastes
Biology Test 12, 14 March 2014
4. Fill in the missing steps for the flow of blood in the crayfish. (3 pts)
a. The heart pumps
b. Blood flows through the blood vessels
c. Blood flows into body cavities
d. Gravity causes blood to collect in the sternal sinus
e. Blood reenters blood vessels
f. Blood vessels take the blood to the _gills__ and the __green gland__.
g. Blood flows into the pericardial sinus
h. Blood reenters the heart through three valves.
5. Name three of the common characteristics of Class Arachnida. (3 pts)
Four pairs of walking legs, a cephalothorax, four pairs of simple eyes, no antennae,
respiration through book lungs
6. Identify this type of spider web. (1 pt)
orb web
7. To which class does this organism belong? (1 pt)
Class Diplopoda
8. Name two of the common characteristics of Class Insecta. (2 pts)
1 pair of antennae, 3 pairs of walking legs, 3 body segments, usually have wings at some
point in their life
9. If the Malpighian tubules in an insect cease to work, how will the organism be affected?
(1 pt)
The insect will no longer be able to filter impurities and wastes form its blood
Biology Test 12, 14 March 2014
10. What structures allow insects to obtain oxygen? (1 pt)
tracheas
11. Katydids go through a nymph stage. What type of metamorphosis do they undergo? (1 pt)
incomplete metamorphosis
12. To which order do the organisms below belong? (3 pts)
a. Have membranous wings, can be either queens, workers, or drones
Order Hymenoptera
b. Undergo incomplete metamorphosis, have leather-like wings covering a pair of
membranous wings
Order Orthoptera
c. Have scaled wings, go through egg, larva, pupa, and adult stages
Order Lepidoptera
Total: 34 points