Bio1331 Animals - Evolution - Ecdysozoans (Lecture Five)
15 Questions
| Total Attempts: 52
Questions and Answers
- 1.Complete the following sentence:One of the key features of the ecdysozoans is the ___________, a tough, non-cellular, secreted body covering.
- 2.Complete the following sentence:For an ecdysozoan to grow, the cuticle must be _____ and replaced with a larger one.
- 3.Approximately when did moulting evolve?
- A.
>500 million years ago
- B.
>5 million years ago
- C.
>5 billion years ago
- D.
>500 thousand years ago
- 4.True or False?Ecdysozoans had a single common ancestor.
- A.
True
- B.
False
- 5.Complete the following sentence:________ is a term meaning the moulting of the cuticle to enable growth.
- 6.The Nematodes are a clade of Ecdysozoans.Tick everything below that this group of organisms are/have.
- A.
Bilaterally symmetrical
- B.
Radially symmetrical
- C.
Triploblastic
- D.
Diploblastic
- E.
Segmented
- F.
Unsegmented
- G.
Thick, multi-layered cuticle
- H.
Thinly layered cuticle
- I.
Pseudocoelomate
- J.
Acoelomate
- K.
Coelomate
- 7.The second clade of Ecdysozoans taught in the lectures are the most dominant animals on the Earth, accounting for at least 75% of described species and found in nearly all habitats on the planet.Name this species.
- 8.Please fill answer below_______
- 9.Complete the following sentence:________ were an early arthropod, with simple and repetitive body segmentation and appendages.
- 10.The substance that composes the exoskeleton is leathery in its pure form, but becomes harder when encrusted with calcium carbonate.It is found within the endocuticle of the exoskeleton.Name this substance.
- 11.Complete the following sentence:Some arthropod joints contain a substance called _______, which stores energy on compression and releases it efficiently, allowing them to jump.
- 12.True or False?Butterflies were the first insects to fly.
- A.
True
- B.
False
- 13.Complete the following:Insects have many adaptations to gas exchange.One of these adaptions is the _________, external openings on the thorax and abdomen. These can be closed to regulate water loss.
How well do you know the group of Ecdysozoa? Test your biology knowledge here with this quiz.
Questions: 10 | Attempts: 13 | Last updated: Sep 18, 2017
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Sample QuestionWhat is an Ecdysozoa?
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Questions: 12 | Attempts: 118 | Last updated: Sep 6, 2018
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Sample QuestionHow many phylums are in Ecdysozoa?
Numerous species of animals are being discovered and some which are hardly known to public but with some rarely distinctive and excellent features. How much do you know about rare and exquisite animals. Check out this quiz.
Questions: 10 | Attempts: 11197208 | Last updated: Sep 18, 2020
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Sample QuestionWhat are the rare animals?
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