Shared Flashcard Set

Details

Biodiversity
Lecture 24
61
Biology
Undergraduate 1
03/27/2011

Additional Biology Flashcards

 


 

Cards

Term
invertebrates
Definition
___ are animals that lack a backbone
Term
invertebrates
Definition
___ account for 95% of known animal species
Term
95%
Definition
Invertebrates account for ___ of known animal species
Term
sponges, Porifera
Definition
___, phylum ___ are the simplest animals
Term
sponges
Definition
___ live in both fresh and marine waters
Term
sessile
Definition
Sponges are ___.
Term
Sponges
Definition
These animals have a porous body and lack true tissues and organs.
Term
5000
Definition
There are more than ___ described sponge species
Term
spicules
Definition
Sponges bodies are structured with silica fibers called ___.
Term
hermaphrodites
Definition
Most sponges are ___, meaning that each individual functions as both male and female and they can produce sexually or asexually.
Term
choanocytes
Definition
By sponges beating their flagella, the
___ create a current
Term
filter
Definition
Sponges are ___ feeders
Term
- By beating flagella, the choanocytes create current
- Food particles are trapped in the mucus, engulfed, and either digested or passed to amoebocytes
- Amoebocytes transport nutrients to other cells of the sponge body
Definition
Describe the filter feeding used by sponges.
Term
Eumetazoa
Definition
All animals except sponges belong to the clade ___, animals with true tissues
Term
Phylum Cnidaria
Definition
___ is one of the oldest groups the clade Eumetazoa
Term
Cnidarians
Definition
___ were among the earliest eumetazoans
Term
eumetazoans
Definition
Cnidarians were among the earliest ___
Term
sessile and floating
Definition
Cnidarians have a wide range of ___ and ___ forms including jellies, corals, and hydras.
Term
diploblastic
Definition
Cnidarians have a relatively simple ___ body
Term
10,000
Definition
There are about ___ described cnidarian species
Term
radial
Definition
All cnidarian species have ___ symmetry
Term
gastrovascular cavity
Definition
The body of a cnidarian is a sac with a central digestive compartment, the ___
Term
central digestive compartment
Definition
The body of a cnidarian is a sac with a ___, the gastrovascular cavity
Term
cnidarians
Definition
A single opening acts as both mouth and anus in ___
Term
polyp and medusa
Definition
There are two variations of the cnidarian body plan. What are they called?
Term
carnivores
Definition
All cnidarians are ___ (pertaining to their eating)
Term
cnidocytes
Definition
Cnidarians are armed with tentacles and ___ for defense and capturing prey
Term
Hydrozoa, Scyphozoa, Cubozoa, and Anthozoa
Definition
What classes are in the Phylum Cnidaria?
Term
Hydrozoa
Definition
Colonial polyps are in class ___
Term
Scyphozoa
Definition
Many jellies (___), are bioluminescent. The largest have tentacles more than 100 m long
Term
Cubozoa
Definition
The sea wasp, ___. Its poison is more potent than cobra venom
Term
medusa and polyp
Definition
Hydrozoans have ___ and ___ forms
Term
Hydrozoans
Definition
___ have both polyp and medusa forms
Term
Scyphozoa
Definition
In the class ___ Jellies (medusae) are the prevalent form of the life cycle
Term
Black Sea
Definition
Global warming brings poisonous jellyfish
to the ___
Term
Cubozoa
Definition
The class ___ includes deadly sea wasps
Term
It is box shaped and has complex eyes
Definition
Describe the cubozoa medusa.
Term
Anthozoa
Definition
Class ___ includes the corals and sea anemones
Term
Anthozoa
Definition
Class ___ occur only has polyps
Term
half a billion
Definition
___ people around the world depend on coral reefs for food and jobs.
Term
Bilateria
Definition
Unlike sponges and cnidarians most animal species belong to the clade ___, which have bilateral symmetry and triploblastic development
Term
Platyhelminthes
Definition
Flatworms belong to the phylum ___
Term
Flatworms: phylum Platyhelminthes
– Live in water, and in damp terrestrial habitats
– Are flattened dorsoventrally
– They are acoelomate
Definition
Describe the flatworm.
Term
Turbellarian
Definition
Phylum ___ is mostly marine
Term
planarians
Definition
The best-known turbellarians are ___
Term
Trematodes
Definition
___ or flukes are not so nice. They live as parasites in or on other animals
Term
flukes
Definition
Most ___ are parasites of fish, but they can infect the human liver as well
Term
schistosomiasis
Definition
___ flukes live in the human intestine.
Term
1. schistosomiasis flukes live in the human intestine.
2. Flukes reproduce in the human host. Leaving eggs in feces.
3. The larvae infect snails
4. Reproduction in a snail produces larvae
5. Larvae penetrate human skin In fields contaminated with infected feces.
Definition
Describe how Trematodes parasitize humans and snails
Term
Class Cestoda
Definition
Tapeworms are what class?
Term
parasitic; 60
Definition
Tapeworms are ___ and can be up to ___ ft long
Term
Rotifers, phylum Rotifera
Definition
___ are tiny animals that also inhabit water and damp soil
Term
plankton
Definition
Rotifers, phylum Rotifera are one type of ___.
Term
protists
Definition
Rotifers are smaller than many ___
Term
multicellular; complex organs
Definition
Rotifers are ___ and have ___ like ours
Term
hypodermic impregnation
Definition
Rotifers mate by ___.
Term
male
Definition
No ___ bdelloid rotifer has ever been found.
Term
bdelloid rotifer
Definition
No male ___ has ever been found.
Term
80 million
Definition
Apparently for ___ years the females have been reproducing solely through cloning themselves (parthenogenesis).
Term
cloning themselves (parthenogenesis)
Definition
Apparently for 80 million years the females have been reproducing solely through ___ (___).
Term
bacterial, fungal and even plant
Definition
Swapping genetic material is normal for bacteria but it's incredibly rare in animals. But among rotifer DNA, researchers unexpectedly found traces of ___ genes.
Supporting users have an ad free experience!