Phylum Ctenophora

Question 1

who are they

Answer 1

• Comb rows
• Largest animals to moves using exclusively using cilia
• Largest cilia of any organism (~2mm)
• Swim mouth forward
• Tentacles full of food → spin and wind tentacles into mouth so they slurp all the fod up
• Can change direction of feeding in comb rows

Question 2

c is for cell

Answer 2

• Colloblast cells fount of tentacles

- Ensnares prey and sticks and swallows

Question 3

voracious predators

Answer 3

• Can destroy ecosystems
• Mnemiopsis caused fisheries to collapse in black sea
• Beroe ate all of mnemiopsis and ecosystem went back to normal (invasives were good!)
• Berow have specialized cilia along mouth that zip shut so prey cant escape

Question 4

where does the colour come from

Answer 4

• Most colourless and transparent

- Not many have bioluminescence → colour comes from light refraction off od the comb rows