Phylum Annelida - Auxillary information Flashcards Preview

Invertebrate Biology > Phylum Annelida - Auxillary information > Flashcards

Flashcards in Phylum Annelida - Auxillary information Deck (14)
Loading flashcards...
1
Q

For the Leeches and Oligochaetes, one prominent region of the epidermis in sexually mature individuals is what?

A

The clittellum

2
Q

Class Clitellita:

The clitellum produces _______ during _______ and later secretes a _______ where development occurs.

A

The clittellum produces [mucus] during [copulation] and later secretes a [cocoon] where development occurs.

3
Q

The first sgement of an annelid is what?

The second?

A

Prostomium

Peristomium

4
Q

Segment 14 of an earthworm has what?

Segment 15?

A

14 - external pores of the oviduct

15 - paired male genital pores

5
Q

The clitellum is on which segments in earthworms?

A

32-37

6
Q

(sub) Class Oligochaeta:

- most feed on _____ and ________ materials, but earthworms ingest _____ to feed on the microfauna and microflora.

A

Most feed on [dead] and [decaying] materials, but earthworms ingest [soil] to feed on the microflora and microfauna.

7
Q

In Oligochaetes, what is missing compared to polychaetes?

A

parapodia

8
Q

Movement of oligochaetes takes place in ________ ______.

A

peristaltic waves

9
Q

Parapodia function in what?

A

Locomotion

Gas exchange

10
Q

Repetition of body segments seen in annelids is termed what?

A

Metamerism

11
Q

Chaeopterus:

  • has specialized parapodia - ____
  • typically lives in a ____ covered in ______
  • is a sedenterian that lives in _____ substrate
A

fans
tube, mucus
soft

12
Q

All species in class branchiobdellida occur only on the body surfaces of ________, where they extract ______ from the host’s ______, or graze ______ from the exoskeleton.

A

crayfish
blood
gills
diatoms

13
Q

The colour of a leech could give an indication of what?

A

What the leech recently ate

14
Q

Leeches have lost all of their ______, and have a ______ number of body segments.

A

setae

constant