Shared Flashcard Set

Details

Biology Test #3
Diversity of Life (Mostly jsut covers animals)
34
Biology
Undergraduate 1
03/30/2009

Additional Biology Flashcards

 


 

Cards

Term
Name the similarities between plants and fungi.
Definition
They are both sessile. Most fungi and plants cells lack flagella. They both make use of cell walls.
Term
Name the differences between plants and Fungi.
Definition
Fungi are heterotrophs, plants are autotrophs. Fungi cell walls are made of chitin while plants are made of cellulose. Fungi reproduce primarily asexually. Fungi are made up of hyphae. And fungi grow by elongation.
Term
Name the similarities between fungi and animals.
Definition
Fungi and Humans share a common ancestor with eachother before they do with plants. Both fungi and animals are heterotrophs, they must ingest organic matter. Some animals make use of chitin.
Term
What is a lichen?
Definition
The symbiotic relationship between a fungi and a photosynthetic organism, usually an algae or cyanobacteria.
Term
What symmetry do sponges posses?
Definition
None.
Term
Oscula
Definition
The holes on a sponge where water is discharged.
Term
Name the three layers of sponge's wall.
Definition
From the inside out: Choanocytes followed by an epithelial wall followed by the mesohyl.
Term
What is the mesohyl.
Definition
Gelatinous layer containing ameoboide cells along with spicules and spongin, which provide body strength.
Term
What is the function of the choanocytes?
Definition
They beat their flagella, creating a water current that brings in nutrients and expels waste.
Term
Mesoglea
Definition
Layer of gelatinous material in the cnidarian phylum.
Term
Planulae.
Definition
Free-living offspring of the cniderians.
Term
Cnidocytes
Definition
Specialized cells that belong to cnidarians. Containing a harpoon called a nematocyst.
Term
Name the four classes of cnidarians and give an example.
Definition
Hydrozoa (hydroids), Scyphozoa (jellyfish), Cubozoa (box jellies) and Anthozoa (anemones).
Term
What are flame cells.
Definition
Cells that line the the side branches of a platyhelminth's excretory tubes. Mostly used for water regulation.
Term
What is a scolex?
Definition
The attachment organs of a tapeworm.
Term
What are proglottids?
Definition
The segments of a tapeworm.
Term
What is the normal function of a pseudocoelome in a pseudoceolomate?
Definition
A hydrostatic skeleton.
Term
What is a mantle?
Definition
Thick epidermal sheet of skin, covers the dorsal side of mollusks and forms a cavity in which are housed the respiratory,excretory, reproductive and digestive organs.
Term
what are Ctenidia?
Definition
Specialized portions of the mantle that usually consist of a system of filamentous projections rich in blood vessels.
Term
What is a radula.
Definition
A defining feature of the mollusks; a tongue-like organ used for feeding.
Term
What is the nephridia?
Definition
Excretory structure in mollusks that removes nitrogenous wastes.
Term
Describe the circulatory system of mollusks.
Definition
Cephalopods are closed with a three chamber heart, all other mollusks are an open system with no heart.
Term
What is a trochophore?
Definition
The free living larva of a marine mollusk.
Term
What is a Veliger?
Definition
the second free-swimming stage of a marine mollusk larvae.
Term
What is torsion?
Definition
During the embryological development of gastropods, the mantle cavity and anus is removed from the posterior section and are moved close to the mouth.
Term
What was the evolutionary advancement of annelids?
Definition
Primarily segmented bodies.
Term
Describe the circulatory system of the annelids.
Definition
Closed, contain five pseudo-hearts.
Term
What is special about arthroppods appendages?
Definition
They are segmented.
Term
What is ecdysis?
Definition
Molting in arthropods.
Term
What are ommatidia?
Definition
A single eye of an insect, part of the many eyes in a compact eye.
Term
What is an occeli?
Definition
A single eye in an insect, as opposite to a compact eye.
Term
Describe the nerve cord.
Definition
Turns into the brain and spinal cord, in vertebrates.
Term
What us the notochord?
Definition
Located just below the nerve cord, it is responsible for the vertebral column.
Term
What are the pharyngeal slits?
Definition
Area that becomes gills, or dis spears in animals with no gills.
Supporting users have an ad free experience!