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Sea Urchins and Sea Otters

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Sea Otters are known as a __________ for the Monterey Bay marine ecosystem

a)

keystone species

b)

water bear

c)

key pipeline species

d)

invasive species

2.

Sea otters are considered as a

a)

a unique species

b)

predator

c)

prey

d)

sigmarizzlords

3.

Sea urchins greatly feed off of______ which reduces resources for other organisms.

a)

small bugs

b)

kelp

c)

promoters

d)

shrimp and other crustaceans

4.

A sea urchin barren is____

a)

when sea urchins invade other sea urchins

b)

a phenomenon that occurs just because

c)

a urchin-dominated area with little or no kelp.

d)

a barrier in which organisms feed off of seweed

5.

Which word is fits the definition of:  a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically?

a)

Don't get smoked on Mario Kart 8 by a unk

b)

apex species

c)

keystone species

d)

bilateral species

6.

a living thing

a)

biotic

b)

abiotic

c)

bionic man

d)

biology

7.

a non-living thing

a)

abiotic

b)

observation

c)

biotic

d)

volcano

8.

competition

a)

When organisms compete for the same resources.

b)

When organisms dont compete for the same resources.

c)

When organisms compete for different resources.

d)

When organisms compete for the sigmas rizz.

9.

Overlapping organism interactions that show the flow of energy in a ecosystem.

a)

Food web

b)

Energy web

c)

Spider web

d)

Molecule

10.

Are all ecosystem disturbances are harmful?

a)

not all ecosystem disturbances are harmful

b)

yes, because organisms die

c)

no, because not all organisms die.

d)

Examples include forest fires, floods and human-environment interactions.