Kelp Forests
What are two biotic factors of kelp forests?
Girabaldi, Leopard sharks, kelp, purple sea urchins, etc.
What causes most ocean waves?
Wind
What is an invertebrate?
An animal without a backbone
Why are sea otters important for kelp forests?
They keep sea urchin populations in check.
What percentage of the Earth is covered by the ocean?
71%
What are two abiotic factors of kelp forests?
Cold water, high salinity, currents, waves, etc.
Which is more dense: saltwater or freshwater?
Saltwater
How many arms/tentacles does a squid have?
10
Name one difference between seals and sea lions.
Seals - ear holes, smaller, lay flat/use stomach to move
What type of organism forms the base of many marine food chains?
Plankton
What structure helps kelp stay attached to rocks?
Holdfast
What do we call the highest point of a wave?
Crest
stinging cells!
What is the largest marine mammal (and largest animal on Earth)?
Blue whale
What is the largest ocean on Earth?
Pacific Ocean
What gas does kelp absorb from the atmosphere?
Carbon dioxide
What property allows some insects to walk on water?
Surface tension
What hard outer covering protects crabs?
Exoskeleton
What phylum (group) do sea lions, walruses, and seals belong to?
Pinnipeds
Which wavelength (color) of light disappears first in the water?
Red
What do we call protected ocean areas designed to protect kelp forests (and marine life)?
Marine Protected Areas (MPAs)
What is the scientific term for water molecules sticking together due to their hydrogen bonds?
Cohesion
What phylum do sea stars belong to?
Echinodermata
Name all 6 charactertistics of mammals.
1. Give live birth
2. Breathe air
3. Are vertebrates
4. Are warm-blooded
5. Have hair
6. Give milk to their young
How many water molecules are found in one drop of water?
1.7 sextillion molecules about
1.7× 10^21