Question

inclusion questions
which structure? using the vocabulary discussed in this resource, write the structure that each statement is summarizing. structures may be used more than once.
answer options: basal disk, bell, bud, capsule, cnidocyte, ectoderm, endoderm, gonads, lid, mesoglea, mouth, nematocyst, oral arms, tentacles, trigger
description statement cnidarian structure
asexual projection from a polyp that can become a new polyp bud
at the top of the cnidocyte; opens when the trigger is stimulated basal disk
broad, foot - like plate that anchors a polyp down
covered in stinging cells; capture and paralyze prey
cup - shaped cell that holds the nematocyst
found only in medusae; has a ring of muscles that contract and relax to push water out, propelling the jellyfish forward bell
harpoon - like organelle held within the cnidocyte nematocyst
has hooks and a long projection that injects venom into prey cnidocyte
hollow cavity inside the cnidocyte that contains the nematocyst capsule
ingests food and egests waste mouth
inner layer of cells lining the gastrovascular cavity of each cnidarian endoderm
long appendages in medusae that transfer food from the tentacles to the mouth oral arms
non - living, jelly - like substance between the

Explanation:

1. A bud is an asexual projection from a polyp that can develop into a new polyp.
2. The lid is at the top of the cnidocyte and opens when the trigger is stimulated.
3. The basal - disk is a broad, foot - like plate that anchors a polyp.
4. Tentacles are covered in stinging cells (cnidocytes) and are used to capture and paralyze prey.
5. The cnidocyte is a cup - shaped cell that holds the nematocyst.
6. The bell is found only in medusae and has a ring of muscles for propulsion.
7. The nematocyst is a harpoon - like organelle in the cnidocyte.
8. The cnidocyte contains the nematocyst which has hooks and a long projection for injecting venom.
9. The capsule is the hollow cavity inside the cnidocyte that contains the nematocyst.
10. The mouth is used for ingesting food and egesting waste.
11. The endoderm is the inner layer of cells lining the gastrovascular cavity.
12. Oral arms are long appendages in medusae that transfer food from tentacles to the mouth.
13. Mesoglea is the non - living, jelly - like substance between the ectoderm and endoderm.

Answer:

1. bud
2. lid
3. basal disk
4. tentacles
5. cnidocyte
6. bell
7. nematocyst
8. cnidocyte
9. capsule
10. mouth
11. endoderm
12. oral arms
13. mesoglea