Ultimate Quiz On Ecdysozoa

12 Questions | By Reptilesrock | Updated: Mar 21, 2022 | Attempts: 182

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Because I still don't want to revise MCI :D

Questions and Answers

1.

How many phylums are in Ecdysozoa?
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
- E.
  
  5
- F.
  
  6
- G.
  
  7
- H.
  
  8
2.

Check all phylums included in Ecdysozoa:
- A.
  
  Chelicerates
- B.
  
  Nematoda
- C.
  
  Onychophora
- D.
  
  Tardigrada
- E.
  
  Cestodes
- F.
  
  Annelida
- G.
  
  Arthropoda
- H.
  
  Coeloids
- I.
  
  Nematomorphs
- J.
  
  Liapulids
- K.
  
  Priapulids
- L.
  
  Kinorhynchs
3.

What are the main characteristics of Ecdysozoa?
- A.
  
  External cilia
- B.
  
  Ciliated larval forms
- C.
  
  No ciliated larval forms
- D.
  
  No external cilia
- E.
  
  Cuticle
- F.
  
  Coelom
- G.
  
  Reduced coelom/haemocoel
- H.
  
  Moulting
4.

The ecdysozoan cuticle is made of ____, a polymer of ___ ______ _______
5.

Cuticle properties can be changed by_____
- A.
  
  Layers
- B.
  
  Additives
- C.
  
  Sun exposure
- D.
  
  Water exposure
6.

Who adds minerals to increase what? (Example in lecture)
- A.
  
  Crustacea add minerals to increase water proofing
- B.
  
  Crustacea add minerals to increase hardness
- C.
  
  Tardigrades add minerals to increase elasticity
- D.
  
  Grasshoppers add alcohol to increase cocktails
7.

The cuticle is secreted by the ______
8.

Nematodes have low ____ diversity but very high _____ diversity.
9.

DNA _____ _____ has been invaluable in establishing Ecdysozoa.
10.

Which phylum shows coelomate ancestry most clearly?
- A.
  
  Arthropoda
- B.
  
  Nematoda
- C.
  
  Onychophora
- D.
  
  Tardigrada
- E.
  
  Nematomorpha
11.

Insects and nematodes have lost original ____ and ____ _____ new systems.
12.

Small Ecdysozoa (such as tardigrades) are good at _____