Phylum Porifera and Phylum Cnidaria

Question 1

refers to the sequence of categories in increasing or decreasing order.

Answer 1

Taxonomical Hierarchy

Question 2

These are animals that do not contain bony structures, such as the cranium and vertebrae

Answer 2

Invertebrates or Invertebrata

Question 3

The simplest of all invertebrates

Answer 3

Porifera

Question 4

This phylum includes sponges
An example is Parazoans

Answer 4

Phylum Porifera

Question 5

Cylinder shaped cavity

Answer 5

Spongocoel

Question 6

Large common opening

Answer 6

Osculum

Question 7

Epithelial-like cells

Answer 7

Pinacocytes

Question 8

Extracellular matrix in porifera morphology

Answer 8

Mesohyl

Question 9

Multiple pores that allow entry of water

Answer 9

Ostia

Question 10

“Collar cells”

Answer 10

Choanocytes

Question 11

“archaeocytes”

Answer 11

Amoebocytes

Question 12

These provide additional stiffness to the body

Answer 12

Spicules

Question 13

These are glass sponges

Answer 13

Hexactilenellida

Question 14

Calcareous sponges

Answer 14

Calcarea

Question 15

having a body derived from only two embryonic cell layers (ectoderm and endoderm, but no mesoderm), as in sponges and coelenterates.

Answer 15

Diploblastic

Question 16

Specialized cells “stinging cells”

Answer 16

Cnidocytes

Question 17

They are animals that show radial or biradial symmetry and are diploblastic. 99% of them are marine species.

Answer 17

Phylum Cnidaria

Question 18

What are the 2 distinct morphological body plans of Phylum Cnidaria?

Answer 18

polyp or “stalk”
medusa or “bell”

Question 19

This class includes all cnidarians with only the polyp body plan; no medusa. usually cylindrical in shape and are attached to a substrate.

Answer 19

Class Anthozoa

Question 20

The medusa is the prominent life cycle in this class, but the polyp is still present. A bell like morphology. Includes all jellies.

Answer 20

Class Scyphozoa

Question 21

Includes BOX shaped jellies. Considered the most venomous group of all the cnidarians.

Answer 21

Class Cubozoa

Question 22

These are polymorphs who exhibit both polypoid and medusoid forms in their life cycle.

Answer 22

Class Hydrozoa

Question 23

These containing organelles “stingers”

Answer 23

Nematocysts

Question 24

This protist completes its life cycle between tse tse fly, and causes african sleeping sickness

Answer 24

Trypanosoma brucei, GROUP: Excavata

Question 25

This protist causes Giardisis or diarrhea

Answer 25

Giardia Lamblia, GROUP: Excavata

Question 26

This protist causes malaria

Answer 26

Plasmodium , GROUP: Chromoalveolata

Question 27

This generates water current and filters food particles from water

Answer 27

Choanocytes

Question 28

Delivers nutrients to cells and differentiates into other cell types

Answer 28

Amoebocyte

Question 29

Controls water flow through ostia

Answer 29

Porocyte

Question 30

Secretes silica spicules

Answer 30

Sclerocyte

Question 31

These secrete collagen

Answer 31

Lophocyte or collenocyte

Question 32

This protist is a species of green sea weed

Answer 32

Caulerpa taxifolia, GROUP: Archaeplastida

Question 33

This protist produces intricate mineral skeletons and can build their own skeleton

Answer 33

Radiolarians