corals

Question 1

coral PHYLUM

Answer 1

cnidaria

Question 2

coral CLASS

Answer 2

anthozoa

Question 3

coral RANGE

Answer 3

early Cambrian to present

Question 4

two types of coral

Answer 4

solitary

compound

Question 5

what is ‘one’ coral

Answer 5

polyp

Question 6

what are coral skeletons

Answer 6

calcium carbonate

Question 7

what are the 3 orders of corals

Answer 7

rugose
tabulate
scleractinian

Question 8

rugose corals solitary or compound?

Answer 8

either

Question 9

tabulate corals solitary or compound?

Answer 9

compound

Question 10

scleractinian corals solitary or compound?

Answer 10

either

Question 11

rugose coral symettry

Answer 11

bilateral symettry

Question 12

tabulate coral symmetry

Answer 12

radial symmetry

Question 13

scleractinian corals symmetry

Answer 13

6 fold symmetry (hexagon)

Question 14

do rugose corals have SEPTA

Answer 14

yes

Question 15

what shape are rugose corals

Answer 15

horn shaped

Question 16

do rugose corals have collumnellas

Answer 16

yes

Question 17

how many septa in scleractinian corals

Answer 17

6

Question 18

example of rugose coral

Answer 18

lithostrotian sp.

Question 19

example of tabulate coral

Answer 19

halysites sp.

Question 20

example of scleractinian coral

Answer 20

thecosmilia

Question 21

rugose coral range

Answer 21

ordovician - permian

Question 22

tabulate coral range

Answer 22

Cambrian - permian

Question 23

scleractian coral range

Answer 23

Triassic - present

Question 24

which coral may have mural pores

Answer 24

tabulate

Question 25

what are (coral) mural pores

Answer 25

connections between adjacent corallites perhaps for communication

Question 26

modern coral what lives with them?

Answer 26

some have an algae called zooxanthellae which photosynthesises and produces oxygen

Question 27

what are the temp conditions needed for coral growth

Answer 27

23-27C

Question 28

what are water conditions for coral growth

Answer 28

clear - mud and sand clogs polyp

high salinity - 30-40 ppt

Question 29

what are energy levels needed for coral growth

Answer 29

high energy - for oxygen

Question 30

where are modern corals found

Answer 30

30 N - 30 S

Question 31

what are three types of modern reef forms

Answer 31

fringing reefs
barrier reefs
attols/coral islands

Question 32

what is a fringing reef

Answer 32

meet the land some parts may be exposed at low tide

Question 33

what is a barrier reef

Answer 33

further out to sea, with a lagoon seprating coral and land

Question 34

what is a coral island/attol

Answer 34

ring shaped offshore

volcano sinks and moho sags beneath creating an area of shallow sea, coral grows in a ring