MARINE BIOME

Question 1

The marine biome is
the world’s largest
biome, covering
______-quarters of the
earth’s surface.

Answer 1

covering three-quarters of the
earth’s surface.

Question 2

It is the largest biome in the world.

Answer 2

marine biome

Question 3

It takes up a whopping ___% of the
Earth and accounts for ___% of the
world’s water supply.

Answer 3

It takes up a whopping 70% of the
Earth and accounts for 90% of the
world’s water supply.

Question 4

The average temperature is ____˚F,
but it is warmer near the equator where the direct rays of sun can
pierce the water and warm it.

Answer 4

39˚F

Question 5

what is the microscopic marine
algae?

Answer 5

Phytoplankton

Question 6

what are the primary producers of
the ocean?

Answer 6

Phytoplankton

Question 7

is essential to this biome as it provides the __________ needed for algae and phytoplankton, which are the cornerstone of the ocean’s food
chain.

Answer 7

sunlight

Question 8

Types of Ecosystems in Marine
Biome

Answer 8

❑ Ocean Ecosystem
❑ Coral reefs Ecosystem
❑ Estuaries Ecosystem

Question 9

is the largest of the ecosystems
found within the marine biome.

Answer 9

Ocean Ecosystem

Question 10

what are the four horizontal zones in the ocean ecosystem?

Answer 10

❑ intertidal zone
❑ pelagic zone
❑ benthic zone
❑ abyssal zone

Question 11

The ________ zone is where the ocean meets the land, and it varies in appearance depending on its geographical location (rocky, muddy, sandy) and the time of the day.

Answer 11

intertidal zone

Question 12

The ________ zone is further from the land and is home to many species of fish and some mammals, such as whales and dolphins.

Answer 12

pelagic zone

Question 13

Below the pelagic zone is the ________ zone, which includes the sea floor.

Answer 13

benthic zone

Question 14

5 pelagic zone layers:

Answer 14

❑ Epipelagic zone
❑ Mesopelagic zone
❑ Bathypelagic zone
❑ Abysspelagic zone
❑ Hadopelagic zone

Question 15

The _________ zone is nutrient-rich, and supports a wide range of fauna, including bacteria, fungi, sea stars, marine worms, sea anemones, and fishes.

Answer 15

benthic zone

Question 16

The primary flora in benthic zone is _________.

Answer 16

seaweed

Question 17

fauna is _______
flora is ________

Answer 17

fauna = plants (in the ocean)
flora = animals (in the ocean)

Question 18

The _________ zone is the deepest zone and is often dark, as light can not penetrate this deep.

Answer 18

abyssal zone

Question 19

The ocean is divided into three vertical zones, which are based on depth: ___________, __________,
and __________ zones.

Answer 19

❑ euphotic zone (sea level)
❑ dysphotic zone (200 meters)
❑ aphotic zone (1000 meters and deeper)

Question 20

The __________ zone is the area where light can penetrate and where the vast majority of photosynthesis takes place.

Answer 20

euphotic zone

Question 21

This zone is around 656 feet (200 meters) deep.

Answer 21

euphotic zone

Question 22

Marine life species that we can find in the euphotic zone

Answer 22

• Phytoplankton
• Zooplankton
• Krill
• Jellyfish

Question 23

The middle layer is the ________ zone, also known as the ‘twilight zone’ of the ocean. This zone appears deep blue to black in color as less light can reach here.

Answer 23

dysphotic zone

Question 24

Marine life species that we can find in the dysphotic or mesopelagic zone

Answer 24

• lanternfish
• dragonfish
• giant squid
• colossal squid
• king crab

Question 25

❖ The third layer is called the ________ zone, and this layer is completely dark.

❖ It is also very cold and supports little life. This zone makes up approximately 80% of the ocean.

Answer 25

aphotic zone

Question 26

The deepest part of the ocean is the ________ ________, which is 36,200 feet (10,000 meters) deep, which is deeper than Mount Everest is tall.

Answer 26

Mariana Trench

Question 27

______________ are extremely diverse and
can be found all over the world, from tropical
regions to those that are extremely cold.

Answer 27

Coral Reef

Question 28

___________ are the animals that are primarily responsible for building the reefs.

Answer 28

Coral polyps

Question 29

Coral Bleaching

Answer 29

• HEALTHY CORAL (zooxanthellae gives color)
• STRESSED CORAL (increased ocean temp)
• BLEACHED CORAL (turns white, pale, vulnerable)
• DEAD CORAL (diseased)

Question 30

___________ Ecosystem form when salt water from the ocean mixes with fresh water from the land.

Answer 30

Estuary Ecosystem

Question 31

corals have a symbiotic relationship with microscope algae called:

Answer 31

zooxanthellae