Brainscape's Knowledge GenomeTM

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


See full index

Climate Change - Ocean/Terrestial > Ecology - Macroinvertebrates Phylum > Flashcards

Ecology - Macroinvertebrates Phylum Flashcards

1
Q

Porifera

A

Sponges are primarilty marine, having 300 species in lotic/lentic habitats

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

What porifera family is marine?

A

Spongillidae

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

How do porifera feed?

A

Selectively through filtering particles.

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

Structural features of porifera?

A

Aquiferous system, no organs, specialised cells.

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

Aquiferous System

A

This is the sponges system of connected water channels.

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

Types of cells found in porifera?

A

Choanocytes
Pinacocytes
Endopinacoytes
Amoebocytes

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

Where are pinaco and choanocytes found?

A

On the outer surface and the inner sruface respecitvely.

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

How do porifera pull in water?

A

Choanocytes establish water currents pulled through the dermal pores

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

Importance of porifera mesohyl?

A

Contains many cells that can differentiate into other cells…

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

How is surface area-volume ratio maintained in development?

A

Folding over of the pinaco and choanderms(each one cell layer thick)

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

How is the porifera atrium opened to the envrionment?

A

The Osculum

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

Porifera digestion…

A

Internal, constant criculation brining nutrients in.

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

What do porifera feed on?

A

Protists, bacteria, algae, detritus..

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

Gas/waste excretion in porifera..

A

Simple diffusion across body wall

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

Cnidaria

A

Includes jellyfish, hydroids, croal and anemones.

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

Anatomical features of Cnidaria…

A

Radial symmetry and specialised cniocytes

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

Cnidocytes

A

Stining cells in cnidaria containing nematocyts for prey capture.

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

Types of reproductive capabilities in Cnidaria?

A

Sexual and asexual with hydroids/polyp and medusa life-cycle stages.

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

Most common cnidaria in freshwater?

A

Hydra

20
Q

Hydra

A

1-20mm long attaching to macrophytes and substrates, using nematocysts to paralyze copepods and cladocerans.

21
Q

How do hdyra move?

A

Production of a gas bubble.

22
Q

Rotifera anatomy…

A

Cilliated corona with a digestive mastax, a stomach an intestine, an anus, a cerebral ganglion and a central foot.

23
Q

How do rotifera feed?

A

Filter feeding, using cilia, or benthic engulfing near-swimming species.

24
Q

Annelida

A

Metameric, triploblastic coelomates.

25
Q

Annelida segments?

A

Prostomium and Peristomium, with a terminal back end of a pygidium with the anus

26
Q

Organ arrangement of annelida?

A

Organs are suspended, each segment with a portion of gut, circulatory system and nervous system

27
Q

What marks metameric segmentation of annelids?

A

Annuli

28
Q

How do segments move individually of one another?

A

Hydrostatic skeleton.

29
Q

What annelids found in freshwater?

A

Oligochaeta and Leeches

30
Q

Tubifex as a bioindcator?

A

Its resitance to low O2 and high levels of organic pollution

31
Q

Platyhelminths

A

Acoelomate protosomtes including tapeworms

32
Q

Structure of platyhelminthes

A

Mesoderm importance for a muscular mesenchyme for structural support and diverse locomotion.

33
Q

Why are platyhelminthes found in water habitats?

A

Lack of circulatory system means gas exchange is moisture dependent based on body-wall diffusion.

34
Q

Two classes of mollusc?

A

Gastropoda and bivalves.

35
Q

Molluscs

A

Bilateral coelomate protostomes

36
Q

Coelomates

A

Means lacking a true abdominal cavity, with instead a coelom body cavity lined with a peritoneum

37
Q

Structure of coelom in molluscs..

A

Vestiges around various organs like the nephridia, pericardial chamber and perivascular chamber

38
Q

Three parts of mollusc…

A

Head, foot and visceral mass

39
Q

What organisses th mollusc body plan?

A

The epidermal mantle lining

40
Q

Mantle cavity

A

This seperates the mantle and the visceral mass, home to the ctenidia and osphradia.

41
Q

Gastropods

A

Univalve shells and a radula with an odonotphore used for feeding

42
Q

Bivalves

A

Have two half shells with enlarged gilsl with cilitated filaments they filter feed with.

43
Q

Crustaceans

A

Segmented into a head, thorax and abdomen

44
Q

Limbs of crustacea…

A

Thorax has 5+ pairs of jointed legs whilst head has two pairs of antennae

45
Q

Two prominent fish-water inhabitats?

A

Amphipoda and Isopoda

Climate Change - Ocean/Terrestial (18 decks)

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