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WorksheetsMarine Algae and Plants
Total questions: 35
Worksheet time: 35mins
___________________ are multicellular algae that live in the sunlit waters of the ocean.
Seaweeds
Brushweed
oceanweed
land plants
Organisms that are ________________ are made up of more that one cell.
unicellular
many cellular
multicellular
single celled
You can find seaweed on the beach forming the ________________ which is composed of seaweed and debris washed up on the beach from the tide.
rackline
strandline
tide line
both a and b
The leafy part of seaweed is called the
main leaf
Thallus
Challus
spores
a _________________ is a reproductive cell that contains the haploid number of chromosomes.
spore
gamete
zygote
thallus
__________________ are reproductive cells that contain the haploid number of chromosomes
gametes
zygote
spore
thallus
Gametes fuse to form a _____________________.
thallus
spore
zygote
gamete
True of False: gametes contain the diploid number of chromosomes
true
false
Green algae is classified into the phylum
Chlorophyta
Rhodophyta
Phaeophyta
none of the above
Green algae is green because of the pigment
xanophyll
phaoephyll
chlorophyll
chloroplast
True or False: Green Algae has roots, stems and leaves
True
False
Brown algae is classified into the phylum ____________________.
phaeophyta
rhodophyta
chlorophyta
all of the above
True or False: Brown algae is important for shelter and nutrients for other organisms
True
False
True or False: Brown algae is not used in food
True
False
The most common brown algae found on the rocky shore is
Rockweed
irish moss
sea lettuce
ribbon weed
Rock weed has air filled pouches called _____________________ to keep it afloat at high tide
air pouches
air bladders
whispy spores
leafy thallus
The largest brown algae in the ocean is
rockweed
irish moss
kelp
sea lettuce
A chemical in kelp called _______________ is used in food and medicine
carageenan
algin
chlorophyll
none of the above
True or False: Red algae is the most commercially valuable?
True
False
Red algae is classified in the phylum _______________________
Chlorophyta
Phaeophyta
Rhodophyta
None of the above
True or False: Red algae can live in deeper water?
True
False
What two important things do we get from red algae
carrageenan
agar
algin
chlorophyll
True or False: Plants do not grow at beaches?
True
False
Most plants are found on the sand ___________________ which are held in place by roots of plants.
piles
dunes
grasslands
marsh
True or False: Plants do not have to adapt to live on the beach.
True
False
True or False: Most beach plants are vascular plants
True
False
_________________________ grow along sandy beaches in calm bays
Trees
marsh grasses
algae fields
rockweed
The marsh grass with fluffy tassels is called
Phragmites
spartina
cord grass
eel grass
True or False: Spartina can withstand changes in salinity and temperature.
True
False
IN the shallow subtotal zones along the shore ________________________ grow.
marsh grass
sea grass
spartina
Phragmites.
Turtle grass has underground stems called
hold fast
rhizomes
prop roots
dunes
True or False: Sea Grass reproduces by spores
True
False
True or False: Certain trees can grow in salt water.
True
False
The roots of a mangrove tree are called
prop roots
hold roots
holdfast
thallus
True or False: Mangrove trees are nurseries for young organisms.
True
False
