Brainscape's Knowledge GenomeTM

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


See full index

Bio 371 > Theme Two rest Of Phylums > Flashcards

Theme Two rest Of Phylums Flashcards

1
Q

What are protostomes further divided into

And what are their characteristics

A

Lophotrochazoans:
have trochophore larvae and lophophore feeding structure

Ecdysozoans:
Have external cuticale which it shed to frown
(Ecdysis)

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

What type of circulatory and nervous system do protostomes have?

Deuterostomes?

A

Protostomes:
Ventral nervous system
Dorsal circulatory system

Deuterostomes:
Dorsal nervous system
Ventral circulatory system

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

What are some other cues to the taxonomy of protostomes and deuterostomes

A

Body segmentation (found in chordates (us), arthropods, earthworms leeches)

Molecular evidence (dna and protiens)

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

What does the phylum porifera have

A

Sponges

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

What are characteristics of phylum porifera

A

Assymetrical
Parazoans: no true tissues they reform after being cut up
Not diplo or triploblasts
Sessile as adults motile when young
No nerves, filter feeders

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

How to sponges filter feed

A

Suck in water through pores at the base

A choanocyte dissolves the food particle and then the water is shot out through top

Very similar to chaonoflagellates

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

What is phylum Ctenophora

A

Comb jellies

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

What characteristics does phylum Ctenophora have

A

Diploblastic (biradial symmetry)
Gelatinous body
Combs that are actually plates of fused cilia that project outward
Combs are used to move

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

What is included in phylum Cnidaria

A

Jellyfish
sea anemones
coral
hydra

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

What characteristics are in phylum Cnidaria

A

They have radial symmetry
Diploblastic (no mesoderm)
Their life cycles include both polyp and Medusa stages

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

What is the polyp life stage of Cnidaria

A

The mostly sessile stage
The moth is facing the top

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

What is the Medusa life stage of Cnidaria

A

Mobile stage (they move)
Mouth facing down

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

What is a shared derived character of capture prey Cnidaria to capture prey

How do they work

A

Cnidocytes and nematocysts

The nematocyst is a spine (spike) that shoots out when touched then grabs prey. This whole thing is called a cnidocyte (the nematocyst is attached to it)

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

What are siphonophores

A

Colonial cnidarians that a modified for diff functions

Ex. Portuguese man o war jellyfish

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

What is phylum rotifera, what does it include

A

It’s a sister group in lophatrocozoa

Is has a spiky mouth (corona) which moves water to bring particle to its mouth.
Has excretory system and anus

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

What phylum are in lophotrochozoa which are all protsostomes

A

Platyhelminthes (flatworms)
Mollusca
Annelida (segmented worms)

17
Q

What organisms and charcteristics included in phylum platyhelminths

A

Tapeworm
Turbellarian

Endo/ectoparasites,
hermaphrodites (have ovary and penis)
Protruded pharynx and mouth right next to it
Reproductive/digestive systems
Planarian (cut in half get two worms)

18
Q

What is included in phylum mollusca

A

Three main body components:
Foot, mantle, visceral mass (where they keep gut)

4 types of mollusca:
Chitons
Bivalves
Gastropods
Cephalopods (have radula that shreds food)

19
Q

What is special about the mantle in phylum mollusca

A

Secretes a shell (mantle) that’s made of CaCO3

20
Q

What is diff about chitons

A

Only mollusca with multiple parts of the shell
Exclusively marine

21
Q

What is diff about bivalves

A

Fresh water
Two valves for filter feeding

22
Q

What is diff about Gastropods

A

Only group in mollusca that’s terrestrial
Has radula

23
Q

What is diff about cephalopods

A

Exclusively marine
Some soft shell some coil hard shelled
The coiled shell had chambers and each chamber is the size of the shells at a certain time of life

24
Q

What is included in phylum annelida

A

Segmented worms:
Earth worms
Marine worms
Leeches

All lophotrocozoans and protostomes
Trocaphor larvae

25
Q

What phylum is included in the protostome ecdysozoans

A

Nematoda
Arthropoda (largest animal phylum)

26
Q

What do nematoda feed on

A

Decaying organic matter,
Or They Parasitize plants or animals

27
Q

What is the meaning of nemata in nematodes

A

Thread

“Thread worms”

28
Q

What are nematodes and characteristics

A

Roundworms, unsegmented, parasitic
They are pseudoceolomate (no mesoderm lining the gut)
Ubiquitous (can grow anywhere)
Second largest animal phylum

29
Q

What are characteristics of the Arthropoda phylum

A

Exoskeleton (cuticle to shed through ecdysis)
Segmented body
Jointed legs (have joints)

Ex. grasshopper

30
Q

What phylum’s are included in the deuterostomes give examples

A

Echinodermata (sea stars, sand dollars
Hemichordata (acorn worms)
Chordata

31
Q

What are characteristics of echinodermata

A

Larvae is bilaterally symmetrical

Pentaradiate symmetry as adults (five points) its a version of radial symmetry

Have tube feet and water vascular system

Hydrostatic skeleton

32
Q

What is a water vasular system

A

Can change water pressure which makes tube feet move

33
Q

What is the phylum hemichrodata

A

Pharyngeal gill slits (gills to expel water behind mouth)
Dorsal nerve chord
Stomochord (doesn’t run all the way through body, stiffens body) HENCE HEMICHORDATE
Sessile filter feeding

34
Q

What 4 characteristics do phylum chordata have

A

Have notochord
Have dorsal hollow nerve chord
Pharyngeal gill slits
Segment muscles and postanal tail

35
Q

Can chordate from without notochord

A

No

36
Q

What are the three sub phyla of the chordates

A

Urochordata, cephalochordata, vertebrata

37
Q

What is the cephalochordata characteristics and example of one

A

Notochord goes to the tip of the head
Most basal lineage of chordates
Ex. Lancelet

38
Q

What is urochodata characteristics

A

Look very different as adults (change through life stages)
Sessile as adults (filterfeeding)
Adults have heart and gut at the base

Bio 371 (8 decks)

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