Assignment

Question 1

Identify and describe the different types of reef structures: Fringing

Answer 1

Fringing = connected to land

Question 2

Identify and describe the different types of reef structures: Barrier

Answer 2

Barrier = around land but with water between

Question 3

Identify and describe the different types of reef structures: Atolls

Answer 3

Atolls = Ring reef

Question 4

Identify and describe the different types of reef structures: Cayes

Answer 4

Cayes = sandy, small island

Question 5

Identify and describe the zones of the reef and their characteristics: Lagoon

Answer 5

Much light, not much oxygen, not many animals, flat

Question 6

Identify and describe the zones of the reef and their characteristics: Back Reef

Answer 6

Flat, very bright, not many animals, not much oxygen

Question 7

Identify and describe the zones of the reef and their characteristics: Reef crest

Answer 7

Very flat, not much oxygen, not many animals, very bright

Question 8

Identify and describe the zones of the reef and their characteristics: Fore Reef

Answer 8

Deeper, darker, many animals, much oxygen

Question 9

Identify and describe the zones of the reef and their characteristics: Reef shelf

Answer 9

Deep, dark, many animals, much oxygen, colder

Question 10

Back reef, Reef shelf, lagoon, fore reef, reef crest

Answer 10

Lagoon, back reef, reef crest, fore reef, reef shelf

Question 11

Bony fish compared to scale fish

Answer 11

Bony fish= many bones and scales
Cartilaginous fish = many cartilages

Question 12

Mollusca = ?

Answer 12

Soft body

Question 13

Enchinodermata = ?

Answer 13

Spiny skin

Question 14

Arthropoda = ?

Answer 14

Have feet (f.e. crabs)

Question 15

Annelida = ?

Answer 15

Worms

Question 16

Cnidaria = ?

Answer 16

soft bodied stinging animals

Question 17

Porifera = ?

Answer 17

Sponges

Question 18

Describe the basic coral anatomy

Answer 18

Belongs to cnidaria, mouth and tentacles, soft corsls and hard corals, habe polyps looking like a pipe

Question 19

Compare hard and soft coral

Answer 19

Hard Coral has a calcium skeleton, while when soft coral die they disappear, polyps have other structure, soft coral has 8 tentacles and hard coral 6

Question 20

Identify and describe different disturbances on the reef (Crown of thorns, pollution, coral bleaching)

Answer 20

Crown of thorns = too many of them, eating coral
Pollution = destroys coral
Coral bleaching = too hot algae goes out of coral, coral bleaches, and dies after 6 weeks when algae come back.

Question 21

Identify abiotic factors

Answer 21

Are non-living environmental factors such as light, pressure, wind, oxygen

Question 22

Describe and analyse tidal movements

Answer 22

Are the regular rise and fall of sea levels in response to the gravitational forces exerted by the moon and sun on earth

Question 23

Identify and describe plankton

Answer 23

Small organism, many different kinds of plankton, phytoplannton consists of sigle celled aglae and zooplankton consists of tiny animals

Question 24

Describe haloclines, thermoclines and pycnoclines and analyse their effect on nutrient distribution

Answer 24

Halocline = layer of rapidly changing salinity
Thermocline = layer of rapidly chaning temperature
Pycnocline = layer of rapidly changing density

Organism distribute