7th Science Protists Outline Flashcards
Organisms can be classified by the structures in their _______.
Cells
A(n) __________ is a member of a group of eukaryotic organisms. Eukaryotic cells all have a(n) ________ nucleus.
protist; membrane bound
More protists reproduce through _________. That means the offspring are a(n) _________ of the parent.
asexual reproduction; exact copies
Protists are very ________ and have a variety of adaptions for movement and finding food. They often _______ other types of organisms.
diverse; similar
_________ are plantlike protists that use light energy and carbon dioxide. They produce food through a process called _______.
algae; photosynthesis
A(n) __________ is a microscopic plantlike protist that has a hard outer wall.
diatom
A dinoflagellate is an unicellular plantlike protist that has _________, which are whiplike parts that enable it to move.
flagellum
A(n) __________ is a unicellular plantlike protist that has a flagellum at one end of its body. It has no cell wall.
euglenoids
Algae are classified as red, green, or brown, depending on the _________ they contain. Although they resemble plants, algae have _______ rather than roots.
pigments; holdfast
Algae provide ________ for animals and animal-like protists.
food
________ provide shelter for small organisms that become food for otters and seals.
kelp forest
Algae can be toxic when they reproduce quickly in a(n) ________.
red tide
_________ are protists that resemble tiny animals. They are usually microscopic, and all are ________.
protozoans; unicellular
A(n) ____________ is a protist with cilia and two nuclei.
paramecium
Flagellates are a type of protozoa that have _______ similar to those of dinoflagellates.
flagellum
An amoeba is a(n) ________, a protist that has no specific shape.
sacrodine
An amoeba moves and eats with a(n) ________. It pushes part of its body outward to form a(n) _______ “foot.”
pseusophod; temporary
Many protozoans __________ dead animals and plants.
breakdown
Some protozoans are _________ that cause disease. _________ is a serious illness caused by protozoan plasmodia.
paracites; malaria
The body of a(n) __________ is composed of cell material and nuclei floating in a slimy mass.
slime mold
Water molds are funguslike protists that live as _______, or feed on dead organisms.
parasite
Funguslike protists play a valuable role in the ecosystem by breaking down dead _________ and _________. They help make __________ available for other living things.
plant; animal; nutrients
Water mold destroyed more than half of Ireland’s __________.
potato crop
