Unit 6 Taxes and Kinesis

Question 1

What is a stimulus

Answer 1

A detectable change in the environment

Question 2

What’s taxes

Answer 2

Directional response in movement due to stimuli

Question 3

What is euglena example of (taxes or kinesis) and what it’s his survival value

Answer 3

Euglena is an example of taxes,

move towards light to get more light for photosynthesis so more sugars for respiration

Question 4

Describe positive taxes and give an example

Answer 4

This is when an animal move towards stimuli (to more favourable conditions)

•Euglena move towards light to get more light for photosynthesis

Question 5

What is negative taxes, give an example

Answer 5

Move away from stimuli

Eg. Earthworms move away from light to avoid predators and so drying out

Question 6

Describe kineses and give an example

Answer 6

Non-direction response in movement due to stimuli. Instead it changes the speed of movement or the rate it changes direction

Wood lice move rapidly and change direction more in dry conditions SO
•they can find favourable conditions under log,
•avoid predators
•and damp conditions so they don’t dry

Question 8

What is woodlice example of (kinesis it taxes)of and it’s his survival value

Answer 8

Wood lice move rapidly and change direction less often in dry conditions SO
•they can find favourable conditions under log,
•avoid predators
•and damp conditions so they don’t dry