BIOLS232

Question 1

Animals are multicellular and called…..

Answer 1

Metaxoans

Question 2

Animals that have no tissues…..

Answer 2

Parazoans

Question 3

Sponges are parazoans. (true or false)

Answer 3

True

Question 4

Have specialized tissues…….

Answer 4

Eumetazoans

Question 5

The “Eumetazoans” are classified according to their…….

Answer 5

Body symmetry

Question 6

What are the types of symmetry?

Answer 6

Bilateral radial

Question 7

What type of germ layer do animals with a “radial” l symmetry?

Answer 7

Diploblastic

Question 8

What type of germ layer do animals with a “bilatera symmetry” have?

Answer 8

Treploblastic

Question 9

What are the three types of animal cavity?

Answer 9

Celomates - acelomates - pseudo celomates

Question 10

Celomates animals are classified as……

Answer 10

Protostomes and deuterostomes

Question 11

The animals are determined to be protostomes or deuterostomes according to the…. ?

Answer 11

First opening of the embryo

Question 12

If the first opening of the embryo is the mouth we then it is…..?

Answer 12

A protostomes

Question 13

If the first opening of the embryo is the anus we then it is…..?

Answer 13

Deuterostomes

Question 14

Higher animals such as chordate and echinodermata are protostomes. (true or false).

Answer 14

False

Question 15

Lower animals such as mulascas and nematoda are deuterostomes. (true or false)

Answer 15

False

Question 16

Lower animals such as mulascas and nematoda are deuterostomes. (true or false)

Answer 16

False

Question 17

Protostomes can be either ecodysozoans or…..?

Answer 17

Lophotrochozoans

Question 18

Ecodysozoans are devided into two….

Answer 18

Arthropoda and nematoda

Question 19

(Porifera) Sponges are parazoans. (true or false).

Answer 19

True

Question 20

Most of sponges are marine and few live in fresh water habitats. (true or false).

Answer 20

True

Question 21

Sponges are always sesile. (true or false).

Answer 21

True

Question 22

Porifera embryos are not free swimming. (true or false)

Answer 22

Fales

Question 23

The body symmetry of sponges can be either………..

Answer 23

Radial or asymmetrical

Question 24

Level of organization of sponges….?

Answer 24

Cellular level of organization

Question 25

Sponges are classified into 4 classes......

Answer 25

Calcarea demospongiae hexactinellida

Question 26

The skeleton and spicules of the class calcarea is composed of........

Answer 26

Calcium carbonate CaCO4

Question 27

The skeleton and spicules of the class demospongiae is composed of........

Answer 27

Spongin fibers and silica spicules

Question 28

The skeleton and spicules of the class hexactinellida is composed of........

Answer 28

Silica spicules (with a six rayes)

Question 29

The fourth class of sponges is.....

Answer 29

Sclerospongiae

Question 30

The skeleton of sclerospongiae is composed of........?

Answer 30

Calcium carbonate silica spicules

Question 31

A thin noncellular gelatinous mlayer in sponges

Answer 31

The mesohyl

Question 32

Flagellated feeding cells in sponges.......

Answer 32

Choanocytes

Question 33

A ring of microvilli

Answer 33

Collar cell

Question 34

Collar secrete mucous to traps the food particles. (true or false)

Answer 34

True

Question 35

It digests food in sponges

Answer 35

Amoebocytes

Question 36

The outer cell layer of sponges.....

Answer 36

The Pinacoderm

Question 37

An incurrent pore of sponges.......

Answer 37

Ostia / ostium

Question 38

The three types of the inner structure of sponges are........?

Answer 38

Asconoid syconoid leuconoid

Question 39

Is the most complex inner structure type of sponges..............?

Answer 39

Leuconoid

Question 40

Is the simplest inner structure type of sponges

Answer 40

Asconoid

Question 41

Have spongocoel........

Answer 41

Adconoid

Question 42

Lacking a spongocoel.............?

Answer 42

Leuconoid

Question 43

A type of sponges that have prosopyle............?

Answer 43

Syconoid

Question 44

A type of sponges that filters food mor efficiently..................?

Answer 44

Leuconoid

Question 45

A type of sponges that filters food mor efficiently..................?

Answer 45

Leuconoid

Question 46

Most of the sponges are asconoids. (true or false).

Answer 46

False

Question 47

Asexual reproduction in sponges by........

Answer 47

Fragmentation budding and gemmules

Question 48

Sponges have a power of regeneration and re-aggregation. (true or false).

Answer 48

True

Question 49

Gemmules are non-dormant specialized resistant cells. (true or false)

Answer 49

Falest

Question 50

Why Spongilla gemmules go dormant?

Answer 50

For asexual reproduction

Question 51

Leucosolina is in the class...........

Answer 51

Calcarea

Question 52

What type of canal system does leucosolina have?

Answer 52

Asconoid

Question 53

Leuconoid lives by attaching to rocks in lower intertidal Zones. (true or false).

Answer 53

True

Question 54

Leucosolina forms a group of clusters by "fragmenting". (true or false).

Answer 54

Fales. (by budding)

Question 55

Grantia us in the class........

Answer 55

Calcarea

Question 56

What type of canal system does Grantia have?

Answer 56

Syconoid

Question 57

Grantia are marine sponges. (true or false).

Answer 57

True

Question 58

Spongilla is in the class........

Answer 58

Demospongiae

Question 59

Spongilla have a skeleton composed of.........

Answer 59

Spongin fibers and silica spicules

Question 60

The commercial spong is in the class......

Answer 60

Demospongiae

Question 61

What type of Cana system does spongilla and the commercial spong have posses

Answer 61

Leuconoid