Survival And Response

Question 1

What is a stimulus?
What’s a receptor?
What’s an effector?
Response?

Answer 1

Physical change in the external environment bringing about change in activity/behaviour of organism
Specialised cells in sensory organs adapted to receive stimuli and transducer to chemical energy
Muscle or gland that responds to stimulus
Action carried out

Question 2

What do taxes and kinesis enable?

Answer 2

Animal to move in order to find favourable conditions

Question 3

Taxes
  What's the definition?
  What's an eg?
  Name for response to 
     Gravity 
     Temperature 
     Water 
     Water current 
     Air 
     Chemicals

Answer 3

Movement of a whole organism in response to an external directional stimulus 
Maggot moves away from light 
Geotaxis 
Thermotaxis 
Hydrotaxis 
Rheotaxis 
Anemotaxis 
Chemotaxis

Question 4

Kinesis
What’s the definition?
Which are classified according to stimulus?
Which are classified according to response?
What is orthokinesis?
What is klinokinesis?

Answer 4

Non directional movement in which rate of movement is related to intensity of stimulus rather than direction 
Photokinesis,thermokinesis,hydrokinesis
Klinokinesis and orthokinesis 
Speed of movement increases 
Turn faster

Question 5

What’s a survival value?

Answer 5

Reason for the behaviour

Question 6

How do organisms increase chance of survival?

Answer 6

Respond to change in environment