marine science

what

the oceans cover how much of earths surface?

71%

The ocean contains __% of all life on earth

80

The ocean produces —% of our oxygen

50%, with phytoplankton!

what percentage of people live on coast lines?

50%

what does the ocean influnce/drive?

weather and climate

the ocean is a large source of food (T/F)

True! the ocean is a very large source of food.

The pacific ocean is defined by what 3 things?

the largest oceans, shrinking due to plate tectonics, and the Mariana trench

The Atlantic ocean is defined by what 2 things?

getting larger due to seafloor spreading, deepest point in the puerto rico trench

The indian ocean is defined by what?

the deepest point is the java trench

the Artic ocean is defined by what 3 things?

covered in sea ice in winter, melts each summer, surrounded by Canada, Russia, Alaska, smallest ocean

Antarctic ocean is defined by what three things?

AKA the southern ocean, encircles antarctic, very rough and stormy.

Polar temperature in the ocean are…(2 things)

always cold, has the least biodiversity

temperate temperature in the ocean are…(1 thing)

temperature fluctuates seasonally

Tropical temperatures in the ocean are…(2 things)

never to cold, has the most biodiversity.

Vertebrates

have backbones

mammals, reptiles, fish, and birds are all examples of?

vertebrates

Mammals?

Seals, sea lions, manatees, dolphins, whales walruses, polar bears, sea otters

Reptiles?

Turtles, crocodiles, sea snakes, marine iguana

fish?

sharks, rays, and sea horses

birds?

penguins, puffins, gulls

Invertebrates

have no back bone

Examples of invertebrates?

Arthropods, Cnidarians, Mollusks, Echinoderms, Poriferans

Arthropods?

Crabs lobster and shrimp

Cnidarians

Coral, jellyfish, anemone

mollusk?

octopus squid, clam , oyster, slugs, conchs

Echinoderm?

Starfish, urchin, sandollar

Poriferans?

sponges

Biodiversity

Amount of species living in a particular area

Abiotic factors

The non living factors in an ecosystem (never once living) like temperature, PH, humidity, water, air, rocks, sunlight

Biotic factors

The living things in an ecosystem

intertidal zone

The zone where the tide is effecr

nertic zone

shallow water over the continental shelf

oceanic zone

water beyond the continental zone

photic zone

where sunlight can support photosynthesis 0-200m

aphotic zone

no sunlight for photosynthesis. >200

benthic zone

seafloor, species living at the bottom are benthic or benthos

pelagic zone

water of the open ocean largest ecosystem on earth. swimming specie called nekton.