Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
Chrysophyta or “golden brown algae"
|
What are the most abundant organisms on earth?
|
|
|
What are the tests of diatoms made of?
|
Silica
|
|
|
What group of plankton are responsible for the phenomenon known as a “red tide”?
|
Dinoflagellates
|
|
|
What two groups of plankton have tests made of Silica?
|
Radiolarian and protists
|
|
|
What is the deep scattering layer and when does it occur?
|
Zooplankton that form a false fate and in the daytime
|
|
|
What are some commercial uses of diatoms?
|
Body scrubs, toothpaste, pool filters, and car polishes
|
|
|
What do foraminifera use to capture food?
|
Their tests which are surrounded by long slender pseudophia
|
|
|
Why is Sargassum ideal for the surface waters of the open ocean?
|
it is slow growing and low nutrients are needed
|
|
|
Which unicellular protist is encased in a cellulose cell wall?
|
Pyrrophyta
|
|
|
What type of roots do mangrove trees posses?
|
Prop roots and pneumatophores
|
|
|
Why are sea grasses sometimes called ecosystem engineers?
|
Because they partly create their own habitat; the leaves slow down water-currents increasing sedimentation, and the sea grass roots and rhizomes stabilize the seabed.
|
|
|
What type of symbiosis does a radiolarian have with its zooxanthellae (algae)?
|
Mutualism
|
|
|
Which division (phylum) of algae gives us the food additive carrageenan?
|
red aglae
|
|
|
What organism is a valuable index fossil for oil exploration?
|
Foraminfera
|
|
|
What is the sequence of algae divisions from shallow water to deep?
|
Chlorophyta, Phaeophyta, rhodophyta
|
|
|
How does the way light is absorbed by water affect the distribution of “seaweed”?
|
different algae absorbes different wave lengths so different ones are at different depths
|
|
|
Condition caused by eating oysters during red tide
|
PSP
|
|
|
the stalk of a kelp
|
stipe
|
