Sensory Biology And Animal Behaviour

Question 1

What receptors detect light

Answer 1

Photoreceptors

Question 2

What receptors detect smell, taste and pheromones

Answer 2

Chemoreceptors

Question 3

What receptors detect touch and auditory sense

Answer 3

Mechanoreceptors

Question 4

What is the sensory region of the brain

Answer 4

Thalamus

Question 5

What type of eyes do insects have

Answer 5

Compound eyes - detect motion

Question 6

What do eyespots detect

Answer 6

Light and dark

Question 7

What is the ability of single lens eyes

Answer 7

Focus on an image

Question 8

How many types of cone cells do dogs have, how does this effect the vision

Answer 8

Have 2 types
See a lower vibrancy of colour

Question 9

Why do cats have more rods

Answer 9

Better night vision, able to sense movement (prey)

Question 10

How many cones do birds have, what is the importance

Answer 10

Over 3 - (tetrachromatic)
Sexual signaling - females select bright coloured males as it shows their health

Question 11

What type of eye position do preditors have

Answer 11

Binocular

Question 12

What type of eye position do prey have

Answer 12

Monocular

Question 13

Where is the horse blindspot

Answer 13

Upclose and in front

Question 14

Describe olfaction

Answer 14

Detection of odorants (airborne chemicals)

Question 15

Describe gestation

Answer 15

Detection of tastants (dissolved chemicals)

Question 16

What is nepetalactone

Answer 16

Compound found in catnip - cause rubbing + protection against mosquitos

Question 17

What is the Flehmen response

Answer 17

Curing up the lip to expose the vomeronasal organ

Question 18

What muscle curls up the lip

Answer 18

Lavator labii superioris

Question 19

How do pheromones cause a hormonal response

Answer 19

Vomeronasal organ stimulated
Sends impulse to VN bulb (accessory olfactory bulb)
Sends signal to amygdala (part of limbic system)
Then to hypothalamus, triggers GNRH release
Triggers FSH and LH secretion from adenohypophysis

Question 20

Name some functions of pheromones

Answer 20

Sexual attraction.
Territorial marking
Security
Recognition

Question 21

How do snakes detect heat from prey

Answer 21

Pits (organ) (holes in the Rostral region of the cranium

Question 22

What’s re some functions of mechanoreceptors

Answer 22

Communication
Travel
Hearing
Temperature detection
Touch

Question 23

How do fish detect vibrations

Answer 23

Lateral organ

Question 24

How do elephant nose fish sense predators

Answer 24

Electrical impulses

Question 25

I