Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bio 111 > Introducing the Deuterostomes - Echnioderms and Chordates > Flashcards

Introducing the Deuterostomes - Echnioderms and Chordates Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

In Protostomes the blastopore develops into the…

A

mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In Deuterostomes the blastopore develops into the…

A

anus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The circulatory system of Deuterostomes have a

A

ventral heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The central nervous system of Deuterostomes is

A

dorsal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The hard skeleton of Deuterostomes is

A

internal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Echnioderms aka

A

“spiny skin”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where do Echinoderms live?

A

marine environments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the endoskeleton of Echnioderms composed of?

A

CaCo3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what kind of symmetry do Echinoderms have?

A

pentaradial symmetry - only found in adults

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what kind of symmetry do larvae Echinoderms have?

A

bilaterally symmetry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How do Echnioderms change their symmetry

A

metamorphosim

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

how many adhesive arms and suckers do intermediate larval stage grow?

A

3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

how long does it take for a starfish to transform from an egg to a newly formed starfish?

A

2 months

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what species of Deuterostomes have been here since Cambrian era?

A

Priapulids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The ventral side of a starfish is the

A

oral side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what do starfish have in each of their arms?

A

organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Synapormorpy is …

A

a characteristic that only one group has evolved into

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is a synapormorpholgic characteristic of the starfish?

A

water vascular system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the water vascular system used for?

A

locomotion, feeding, excretion, gas exchange

20
Q

How do starfish reproduce?

A

external fertilization

21
Q

whats the problem with the external fertilization of starfish?

A

release gametes into the atmosphere and to try and find the right partner - broadcast spawning

22
Q

How do starfish reproduce?

A

Regeneration

23
Q

Regeneration

A

arm can be dropped and regenerated as a way to …

  • escape predation
  • decreases the chance of infection
  • reproduce
24
Q

How do starfish reproduce?

A

Parthenogensis

25
Q

Parthenogensis

A

development of an unfertilized eff

26
Q

How can parthenogensis be induced artificially in sea urchins?

A

by exposing the eggs to the appropriate salt solution

27
Q

Example of crinoidea

A

sea lilies and feather stars

28
Q

examples of ophiuroidea

A

brittle stars and basket stars

29
Q

Example of Asteroidea

A

sea stars

30
Q

Example of Enchinoidea

A

Sea urchins and sand dollars

31
Q

Sea urchins use their spine for

A

locomotion and defense

32
Q

Sea urchins use ____ for defence and cleaning

A

pincers

33
Q

Example of Holothuoidea

A

Sea Cucumber

34
Q

How do Holothuoidea breathe?

A

by drawing water into their anus

35
Q

Characteristics of Chordates

A

Deuterostomes

36
Q

Characteristics of Chordates

A

Coelomates

37
Q

Characteristics of Chordates

A

Bilaterally symmetrical

38
Q

What characteristics are UNIQUE to chordates?

A

Dorsal hollow nerve cord

39
Q

What characteristics are UNIQUE to chordates?

A

Notochord

40
Q

Notochord

A
  • stabilizing structure (gives regenity to the body)
41
Q

What characteristics are UNIQUE to chordates?

A

Post-anal tail

42
Q

Characteristics COMMON to chordates

A

ventral hear

43
Q

Characteristics COMMON to chordates

A

Reduced segmentation

44
Q

Characteristics COMMON to chordates

A

Segmented musculature - Myomeres

45
Q

What is our closest relative?

A

Sea squirt

Bio 111 (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions