Chordata

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  • Created by: MariaC5
  • Created on: 23-04-18 07:49
How many key traits do Chordates have?
4
1 of 24
The notochord is found in what stage of a chordates life?
Embryonic
2 of 24
The notochord is ...
Flexible
3 of 24
What shape is the notochord?
Rod
4 of 24
In most adult vertebrates the notochord is replaced by what?
Vertebral column (spine)
5 of 24
The dorsal hollow nerve cord derives from what?
Ectoderm
6 of 24
In vertebrates the dorsal hollow nerve cord is modified into what?
The Central Nervous System
7 of 24
Pharyngeal slits are openings in what?
The Pharynx
8 of 24
In aquatic environments pharyngeal slits allow for what?
The exit of water that enter the mouth during feeding
9 of 24
In some invertebrate chordates pharyngeal slits are used for
Filter feeding
10 of 24
In vertebrate fishes pharyngeal slits develop into
Gill arches
11 of 24
In terrestrial animals the pharyngeal slits develop into
Both the jaw and inner ear
12 of 24
Posterior elongation of the body, extending beyond the anus is known as?
The post-anal tail
13 of 24
The post-anal tail contains what?
Skeletal elements and muscles
14 of 24
In aquatic species the post-anal tail provides what?
A source of locomotion
15 of 24
In humans and apes the post-anal tail is only present in what stage?
Embryonic
16 of 24
The sub-phylum Vertebrata have
A backbone made of cartilage or bone and an encased brain
17 of 24
Tunicates are...
An invertebrate sub-phyla of Chordata
18 of 24
Lancelets are..
An invertebrate sub-phyla of Chordata
19 of 24
Tunicates are what kind of feeders?
Filter
20 of 24
Most adult Tunicates are
Sessile
21 of 24
Sea squirts, Thaliaceans and Larvaceans are major groups of...
Tunicates
22 of 24
What is the Coelom
he space between two layers of mesoderm – the body cavity
23 of 24
Organs can grow without being pressed by the body wall is an advantage of what?
The coelom
24 of 24

Other cards in this set

Card 2

Front

The notochord is found in what stage of a chordates life?

Back

Embryonic

Card 3

Front

The notochord is ...

Back

Preview of the front of card 3

Card 4

Front

What shape is the notochord?

Back

Preview of the front of card 4

Card 5

Front

In most adult vertebrates the notochord is replaced by what?

Back

Preview of the front of card 5
View more cards

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