5 Classes of Cnidaria
most venomous of all cnidarians
cubozoa
how many types of sponges are there
What are the cells called that carry out feeding, breathing, reproducing, and excreting
collar cells (choanocytes)
Cells responsible for stinging
cnidocytes
Class that means "flower-animal"
Anthozoa
What is the difference between each body plan of a sponge?
The complexity of how water travels through canals
Water enters a sponge through its...
ostia (pores)
Budding is present in what body form of cnidarians?
Polyp
This class is known for having a velum and existing in colonial form
hydrozoa
this type of sponge has the second greatest amount of surface area
sycanoid
The dead-zone sponges create through toxins is created by
competition for space with other sponges and coral
Sexually immature version of a jellyfish after it detaches from a strobila is called
ephyra
staurozoa
giant barrel sponges are an example of
leuconoid
These are also known as the flat skin-like cells that are on the outside of the sponge
pinacocytes
How do jellyfish sense light, gravity, and chemicals?
nerve net
exhibits alternation of generations but mostly stays in the medusa form
scyphozoa
these sponges are typically only 1mm in diameter and extremely thin and fragile
asconoid sponges
what can sponges produce in a type of asexual reproduction when conditions are unfavorable?
gemmules
Cnidarians leave behind a "skeleton" comprised of what after zooxanthellae leave corals when water temperatures rise
calcium carbonate