Chapter 2

Question 1

“Umwelt” means

Answer 1

The surrounding world or environment

Question 2

“Innenwelt” means

Answer 2

It’s world as perceived and internalized

Question 3

Uexküll believes that security is

Answer 3

more important than wealth

Question 4

Perception is not a toolkit but is a..?

Answer 4

Integrated package directed towards solving the problems of life that an animal faces.

Question 5

our eyes can only see _____ to _____on the electromagnetic spectrum.

Answer 5

420 nm2 to 700 nm

Question 6

overexposure to ultraviolet rays leads to ?

Answer 6

skin cancer

Question 7

Why do 2 colours put together make another colour?

Answer 7

BEcause we have 3 colour receptors, tuned to different wave lengths.

Question 8

Does red and green become yellow?

Answer 8

No, it only seems yellow, with the right instrument it can be distiguished

Question 9

fish and reptiles have how many colour receptors?

Answer 9

4

Question 10

Birds have how many colour receptors?

Answer 10

6

Question 11

Dogs have how many colour receptors?

Answer 11

2

Question 12

What is polarity?

Answer 12

The sun’s light that has another dimension that we are ignorant to.

Question 13

What is Electromagnetic radiation?

Answer 13

waves passing through space.

Question 14

What way does electromagnetic radiation oscillate?

Answer 14

predominately horizantal, vertical or any direction (this is their polarity)

Question 15

Polarization of the sun is dependent?

Answer 15

the suns position in the sky.

Question 16

why can the sun be used as a compass?

Answer 16

Because polarization changes dependent on the suns position.

Question 17

We see most of what we look at through both eyes, also known as?

Answer 17

Stereo depth (pidgeons have bad stereo vision)

Question 18

What is the binocular visual field? how large is it?

Answer 18

The area we see with both eyes, it is 120 degrees out of our 200 degree field-view.

Question 19

Pigeons eyes overlap for ___ but have a ____visual field

Answer 19

35 degrees… have a much larger visual field 340 degrees.

Question 20

The lateral field is?

Answer 20

the area of vision with one eye (pigeons can almost see 360)

Question 21

Pigeons use which view when flying?

Answer 21

Large Lateral view(sensitive to UV light)

Question 22

What is a trichromat?

Answer 22

having 3 colour receptors

Question 23

how do humans and pigeons recognize 3d objects?

Answer 23

using perspective and shading information

Question 24

Smell is a function of ? why?

Answer 24

communication, because it influences the behaviour of another

Question 25

female mice enjoy smells of

Answer 25

adult mice and proximal mice in comparison to the opposite

Question 26

Why is it possible to locate a sound?

Answer 26

reaches ears at different times, farther apart the ears the better the locating.

Question 27

sound is ? humans can hear from what to what hz?

Answer 27

waves of pressure going thru the air. humans hear 100hz to 20khz

Question 28

Bats hear how many octaves higher ?

Answer 28

two

Question 29

homing pigeons & rodents use what to get home?

Answer 29

Magnetic sensitivity/field

Question 30

all animals around the world orient themselves to

Answer 30

the same north and south dimension

Question 31

What changes as an object becomes closer? (electric sense)

Answer 31

Electric reflection and sharpness of edges

Question 32

one species is sensitive to changes in air pressure.

Answer 32

pigeons

Question 33

Ari pressure provides a flying animal with

Answer 33

altitude and weather information

Question 34

why do mammals lack UV sensitivity?

Answer 34

evolutionary history of nocturnal habits has limited function of the eye