Additional Questions

Question 0

What is the function of the lateral line?

Answer 0

Sense vibration to complement vision

Question 1

What type of cells make up the lateral line?

Answer 1

Neuromasts

Question 2

What are the consequences of eye loss in cave fish?

Answer 2

Could be selectively neutral

Could be positive in lowering metabolic costs and preventing damage

Question 3

Why is Astyanax a good model organism?

Answer 3

They can be maintained and bred in the lab
Have short life cycles
Both morphs can be interbred

Question 4

What is apoplastic movement?

Answer 4

When water and other solutes move through the cell wall this is more rapid

Question 5

What gene expresses aquaporins?

Answer 5

PIP1

Question 6

How does water move up the xylem?

Answer 6

Cohesion tension mechanism

Question 7

What does has CO2 fertilisation of the biosphere caused?

Answer 7

Reduced CO2 being naturally released into the atmosphere each year

Question 8

Give three types of animals that have symbiotic relationships at deep sea vents

Answer 8

Terebellid polycheates with ectosymbionts
Alvinocaridid shrimps with ectosymbionts on gill and mouth
Gastropods with bacteria in gills

Question 9

Give two examples of animals with symbiotic relationship with vents in shallow water

Answer 9

Solemyid bivalves with bacteria in gills

Lucinig bivalves with bacteria in gills