Chapter 3

Question 1

Proximate analysis deals with

Answer 1

factors that affect an organism while its alive

Question 2

study on house finch birds by

Answer 2

hill

Question 3

Females colouring is than males

Answer 3

less bright coloring

Question 4

Red color result of

Answer 4

carotenoids ingested by the birds only by diet

Question 5

hill’s study Found differences in finch females across

Answer 5

Michigan, NY, and Hawaii

Question 6

hill’s study suggests that

Answer 6

Suggests that coloration depends on carotenoid-based food source availability

Question 7

Differences in plumage color between males and females is based on

Answer 7

differences in foraging behaviors

Question 8

house finch Males actively look for

Answer 8

carotenoid based foods

Question 9

Hill’s finch experiment involved

Answer 9

using dyes to either brighten or lighten males plumage

coloration

Question 10

in hills experiment it was found that

Answer 10

males preferred brighter males (ultimate factor)

Question 11

what is the benefit of male house finches being brighter

Answer 11

brighter males have more disease resistant offspring

more disease resistant

Question 12

brighter male finches and babies

Answer 12

fed chicks 2x more than drabber males

** However, this was only found in Eastern population,

Question 13

females in BOTH eastern and western populations

Answer 13

preferred brighter males

Question 14

bright colour shows that brighter males better foragers, therefore

Answer 14

hence offspring will be better foragers (indirect benefit)

Question 15

Endocrine system:

Answer 15

ductless glands that secrete hormones directly into the bloodstream (vertebrates) or into fluid surrounding tissue (invertebrates)

Question 16

Vertebrates hormone glands=

Answer 16

• Pituitary gland
• Adrenal gland
• Thyroid gland
• Pancreas
• Gonads
• Hypothalamus

Question 17

what do endocrine cells do

Answer 17

synthesize and then secrete hormones into the bloodstream

Question 18

hormones act as

Answer 18

messengers that affect target cells

Question 19

hormones Affects behavior both directly and indirectly through

Answer 19

changes in cell metabolism or DNA expression

Question 20

Production + secretion of CHR (corticotrophin-releasing hormone) from the x causes

Answer 20

the anterior pituitary gland to secrete ACTH, which stimulates the adrenal gland to produce glucocorticoid hormones like cortisol

Question 21

glucocorticoid hormones like cortisol

Answer 21

play critical role in the production of stress related behaviors

Question 22

Neurohormones:

Answer 22

hormones released into the blood via neurons (located in the brain)

Question 23

Examples: birds mate in spring/summer -> longer days -> i

Answer 23

increase in levels of gonadotropin + testosterone

Question 24

day length has effects on testosterone levels causing

Answer 24

changes in testosterone and therefore parental care

Question 25

There are 3 interactive systems

Answer 25

input system, central processor, output

Question 26

input system

Answer 26

all sensory systes

Question 27

central processor

Answer 27

made up of the central nervous system that process and integrates the sensory info received

Question 28

output system

Answer 28

effectors such as muscles that move when stimulated