Tag Archives: video

I shall be testing you to see how much you know about marine ecosystems.Good luck and may the best earn points Mark an “x” in the circles for your answer.The questions go along with this video:

http://player.discoveryeducation.com/index.cfm?guidAssetID=0ca59500-46fc-4374-8e57-6a779c7b8bd2&TeacherGuid=90000000-0000-aa79-4235-000000000000&blnPopup=1&blnAssigned=1

You may also use the internet. Goodluck!

1.Tiny photosynthetic organisms called diatoms are _____.
(Choose only one answer)
() algae
()fungi
()vertebrates
()bacteria

2.Sea slugs, limpets, snails, and barnacles are all mollusks.
(Choose only one answer)
()True
()False

3.The sun is the ultimate source of most biological energy on our planet.
(Choose only one answer)
()True
()False

4.Which of the following are filter feeders?
(Select all that apply)
()sponge
()sea slugs
()reef dwelling fish
()clam

5.Sponges and barnacles stay in one place and eat plankton. They are _____.
(Choose only one answer)
()grazers
()filter feeders
()secondary producers
()secondary consumers

6.Sponges, sea urchins, and sea stars are all primary food consumers
(Choose only one answer)
()True
()False

7. Predators feed mostly on living animals.
(Choose only one answer)
()True
()False

8. Fungi and bacteria change dead algae, animal tissues, and waste into nutrients that are usable by the algae. This process is called _____.
(Choose only one answer)
()detritus
()red tide
()production
()decomposition

9. Which of the following are grazers?
(Select all that apply)
()limpets
()reef dwelling fish
()sponge
()sea slugs
()clams

10.An endangered sea cucumber might escape a predator by _____.
(Choose only one answer)
()swimming very fast
()ejecting its internal organs
()shutting its shell very tightly
()stinging with cells on its tentacles
Ok look people! I am doing this online homework assignment and i watched the video and did the answers and made a 72….. I ‘m alowed to use the internet and the video….. Plesee!!! Help!