Intro / Body Plans

Question 1

___ population controls the ___ population

Answer 1

Predator / Prey

interchangable

Question 2

Extended intimate relationship between individuals of different species

Answer 2

symbiosis

Question 3

One symbiont benefits and the other is harmed

Answer 3

Parasitism

Question 4

One symbiont is benefited and one is unaffected

Answer 4

Commensalism

Question 5

Both symbionts benefit

Answer 5

Mutualism

Question 6

3 types of symbiosis

Answer 6

Parasitism
Commensalism
Mutualism

Question 7

3 Types of interaction avoidance

Answer 7

Camouflage
Aposematic Coloration
Mimicry

Question 8

• Dont get recognized or noticed
• Cryptic Coloration: adapt a pattern to blend in
• Counter shading: backside is dark and under is light.

Answer 8

Camoflage

Question 9

Adapt a pattern to blend in

Answer 9

Cryptic Coloration

Question 10

Backside is dark and under is light

Answer 10

Countershading

Question 11

Periodic change in the assemblage of species in a community.

Answer 11

Community succession

Question 12

Pioneer Community

Answer 12

Generalists
No specific resource requirement
Change the environment
Gives rise to intermediate community

Question 13

Intermediate Community

Answer 13

Fewer generalists
More specialists
Changed the environment

Gives rise to another intermediate community

Question 14

Intermediate community -> Intermediate community -> Intermediate community -> Intermediate community ->

Eventually gives rise to ____

Answer 14

Climax Community

Question 15

Climax Community

Answer 15

Mostly specialists

does NOT change the environment

Question 16

Does a climax community change the environment?

Answer 16

No

Question 17

Random arrangement of body parts

Not designed for locomotion

Answer 17

Asymmetry

Question 18

Arranges body parts around a central axis
Locomotion is poor in all directions
Oral vs. Aboral surfaces

Answer 18

Radial Symmetry

Question 19

Oral Vs Aboral

Answer 19

Mouth side and non-mouth side

Question 20

Divided into somewhat equal left and right sides
Designed to move forward
Cephalization

Answer 20

Bilateral Symmetry

Question 21

Cephalization

Answer 21

collection of sensory neurons at front of animal

Question 22

Middle plane

Answer 22

Mid-sagittal plane

Question 23

Frontal plane divides…

Answer 23

Dorsal and ventral

Question 24

Top of frontal plane

Answer 24

Dorsal

Question 25

Bottom of frontal plane

Answer 25

Ventral

Question 26

Transverse plane divides…

Answer 26

Anterior and posterior

Question 27

Medial means

Answer 27

closer to midsagittal line

Question 28

Lateral means

Answer 28

further from midsagittal line

Question 29

Distal means

Answer 29

farther from the connection point

Question 30

Proximal means

Answer 30

closer to the connection point

Question 31

Distal and proximal only used on

Answer 31

Appendages

Question 32

Epidermis

Answer 32

Ectoderm

Question 33

Gastrodermis

Answer 33

Endoderm

Question 34

Non-living layer between epidermis and gastrodermis

Answer 34

Mesoglea

Question 35

Acoelomate

Answer 35

No space between gut and body wall

Question 36

Pseudocoelomate

Answer 36

Has a space between gut and body wall that is not mesodermally-derived

Question 37

Coelomate

Answer 37

Space between gut and body wall

Question 38

Advantages of a coelom

Answer 38

Additional space to store a 
meal,water, extra calories, 
Hydrostatic skeleton
Extra space for contraction of muscles (expel gametes)
Increase surface area of internal organs

^^^ all adds to increase in body size