FINAL Flashcards
What are the characteristics of protozoans?
– Heterotrophic
– Single celled organisms
– Functional organelles in place of organs and tissues
What are the groups that are under the kingdom Protozoans?
Excavata, alveolates (Ciliates, Apicomplexans)
rhizarians, unikonta
What is the organism in the group excavata?
Trypanosoma
What does trypanosoma cause? And where it is located?
African sleeping sickness, and is located in the blood of vertebrates
What are some key characteristics of alveolata ciliates?
They move by cilia and are complex with two nuclei
What is the organism in the group alveolata ciliates?
Paramecium
Do the paramecium quiz
https://www.purposegames.com/game/paramecium-labeling
What are the characteristics for Aveolata apicomplexans? What species is highlighted in this group?
All members are parasitic, they cannot move, plasmodium is the species highlighted
What does plasmodium cause?
Malaria in humans
what species do rhizarians contain? and what are they made out of?
The species is radiolarians and they have skeletons made of silica
What are some characteristics of unikonta tubulinids?
- Movement by pseudopod
- Commonly found in freshwater ponds and
streams - Reproduce by
binary fission - Obtain food
by phagocytosis
What kind of organisms does the phylum porifera contains?
sponges
What kind of organisms does the phylum cnidaria contains?
Cnidarians
How can you tell if a sponge is in the class calcarea?
Small, slender sponge.
Rarely exceeding one
inch in height.
* Found in shallow marine
water
* Reproduction is both
sexual and asexual
How can you tell if a sponge is in the class Demospongiae?
If they are common bath sponges or fresh water sponges
What are some characteristics of the phylum Cnidaria?
– Radial symmetry
– Digestive cavity
– Some muscle fibers
– Stinging cells – cnidocytes
What two forms are in the phylum cnidaria?
Poly and medusa
How can you tell if an organism is in the class anthozoa?
It is only in the polyp form and they are anemones or corals
What forms can organisms form in the class hydroza?
Polyp and medusa forms
What species are in the class hydrozoa?
Hydra (Polyp)
– Portuguese Man-Of-War (siphonophore)
What form is predominant in the class scyphozoa? And what is the most common member in this class?
The medusa form and the most common member is the jellyfish
Describe the body plan for acoelomates?
Lack a body cavity between the digestive
tract and outer body wall
* Tripoblastic (body tissue developed from
three embryonic germ layers)
* Bilateral symmetry
* Lack specialized organ systems for
transporting nutrients and oxygen to
internal organs
What are the defining characteristics of the phylum plathelminthes?
Dorsoventrally flattened body
(flatworms)
* Bilateral symmetry with dorsal and
ventral surfaces
* Distinct anterior and posterior
ends
* Most primitive of bilateral animals
* Well developed- nervous,
excretory, muscular, digestive, and
reproductive systems
What are the three classes in the phylum plathelminthes?
- Three classes: Turbellaria,
Trematoda, and Cestoda
Label the planarian quiz
https://www.purposegames.com/game/planarian-to-label
What organism are in the class turbellaria?
Planarians
What class are flukes apart of and what do they do?
Class trematoda, and they are Internal parasites of vertebrates
* Thick integument- resistant to
hosts enzymes
* One or more ventral suckers
– Used to attach fluke to host
* Large portion of body occupied
by reproductive organs and a bi-
branched intestine
LABEL THE FLUKE QUIZ
https://www.purposegames.com/game/fluke
What are the characteristics of the Chinese liver fluke?
- Life cycle requires two hosts
- Adult fluke ~15mm long
- Lives in the bile ducts of the human
liver - Hermaphroditic – capable of self-
fertilization
What are the characteristics of the Sheep liver fluke?
- Commonly infects sheep and
cattle - Can also infect humans
– Human infestation common in Asia - Adult fluke ~15-50mm long
What are the characteristics of the blood liver fluke?
Inhabit blood vessels
near intestines of
humans and other
vertebrates
* Long and slender
* Separate sexes
What organisms are in the class cestoda?
Tapeworms
Describe the body plans of Pseudocoelomates
- Fluid-filled cavity called the pseudocoelom
– A primitive cavity found in the embryo and persists in
adults - Complete digestive tract
What organisms are in the phylum nematoda?
Roundworms, hook worms
What does trichinella spiralis cause in humans?
Trichinosis in humans
What classes are in the phylum Mollusca?
– Class Bivalvia
– Class Polyplacophora
– Class Gastropoda
– Class Cephalopoda
What classes and subclasses are in the phylum annelida?
– Class Polychaeta
– Class Clitellata
* Subclass Oligochaeta
* Subclass Hirudinae
What are the characteristics of the phylum mollusca?
Soft-bodied animals that may
have an internal or external
shell
* Bilaterally symmetrical
* Have three main body regions
What are the three body regions in the phylum mollusca? and what do they do?
– Foot – means of locomotion
– Visceral mass – contains
excretory, digestive and
circulatory organs
– Mantle – specialized tissue that
secretes the shell
What organisms are in the class bivalvia?
Mussels, clams, scallops, oysters
What are some characteristics of the class polyplacophora?
- Primitive marine
organisms - Shell composed of eight
overlapping plates - Muscular foot on
ventral side
What organisms are in the class polyplacophora?
Chitons
What organisms are in the class gastropoda?
Snail, slugs, and nudibranchs
What is the scraping structure in the mouth of a snail called?
The radula
What organisms are in the class cephalopoda?
Squids, octopuses, cuttlefish?
What are the characteristics of the phylum annelida?
Phylum Annelida
* Segmented worms
– earthworms and leeches
* Have a true body cavity
(coelom)
What organisms are in the class polychaeta?
- Polychaete worms, “sea
mouse”, feather dusters - Thousands per square
meter, often overlooked
What are the organisms is in the subclass oligocaeta?
Earthworms
What subclasses are a part of the class clitellata?
subclass oligocaeta, Subclass Hirudinea
What organism is part of the subclass Hirudinea?
Leeches
What classes are in the phylum Chelicerates?
Merostomata & Arachnida
What are the characteristics of the phylum Chelicerates?
- Primarily terrestrial
- Have two regions
– Head and thorax fused (cephalothorax)
– Abdomen - Six pairs of appendages
– First pair are called chelicerae (pincers or jaws)
– If first pair are pincers the next five pairs are for
walking, if first pair are jaws second are for
grabbing or holding (pedipalps)
What organism are in the class merostomata? What are the characteristics of the Organism?
HORSESHOE CRAB
- Two body regions
– Horseshoe shaped
carapace
– Abdominal shield
– Telson (tail spine) - Used to right the body
when overturned, and to
push forward off the
ocean floor - Most closely related to
spiders
What organisms are in the class arachnida?
Spiders, scorpions, mites, ticks
What are the differences between the two classes Chilopoda and Diplopoda?
Class Chilopoda
(Centipedes)
– Predatory
– Venomous
– 1 pair/segment
lass Diplopoda
(Millipedes)
- Feed on detritus
- Live under leaves, logs & rocks
- 2 pair/segment
- protection
What are the characteristics of the class Hexapoda and what organism is in this class?
INSECTS
Three body regions
– head
– thorax
– abdomen)
* Antennae
* Three pair of legs
* One or two pair of wings (some modified)
What organisms are in the class Crustacea?
Lobsters, crabs, shrimp, crayfish
What are the characteristics of the phylum Echinodermata?
Marine, bottom-dwelling
animals
– Starfish, sea urchins, sand
dollars, and sea
cucumbers
* Most are radially
symmetrical
* Deuterostomes
* Have a true coelom
– Thought to be closely
related to chordates
What organisms are in the class Asteroidea?
Star fish and brittlestars
LABEL THE WATER VASCULAR SYSTEM OF THE STARFISH
https://www.purposegames.com/game/starfish-sea-star-water-vascular-system-game
What organisms are in the class Echinoidea?
Sea urchins and sand dollars
What organisms are in the class holothuroidea?
Sea cucumbers
What classes are in the phylum Chelicerates?
- Class Merostomata
- Class Arachnida
What classes are in the phylum Myriapods?
Class Chilopoda
* Class Diplopoda
What classes are in the phylum Pancrustaceans?
Class Hexapoda
* Class Crustacea
What classes are in the phylum Echinodermata?
- Class Asteroidea
- Class Echinoidea
- Class Holothuroidea
What are the subphylum in the phylum Chordata?
– Subphylum Urochordata
– Subphylum Cephalochordata
– Subphylum Vertebrata
What are the big four characteristics that are for the phylum chordata?
– Notochord
– Pharyngeal gill slits
– Dorsal hollow nerve chord
– Post anal tail
what organism are in the subphylum Urochordata?
TUNICATES
* Chordate characteristics are present in
larval stage
* Marine organisms covered by a tunic
what organism are in the subphylum Cephalochordata? (With some characteristics)
AMPHIOXUS OR LANCELET
- Marine fishlike animal
- Small- 7 cm (2.8in)
maximum length - Shallow waters
- 22 species
- Burrows in the sand with
anterior end sticking out
What are the characteristics of the subphylum Vertebrata?
- Largest most diverse
group of chordates - Have an
endoskeleton with a
backbone
– Vertebrae develop
and notochord
becomes disks - Have a cranium to
protect the brain
what organisms are in this class agnatha?
HAGFISH AND LAMPREY
- Jawless fish
- Vertebrae made of cartilage
- Hagfish are marine
- Lampreys marine and freshwaters
What organisms are in this class Chondrichthyes?
SHARKS, SKATES, RAYS
* Cartilage instead of ossified bones
* Skin has small pointed scales
– Dentine plates covered by enamel
(similar to vertebrate teeth)
What organisms are in this class Osteichthyes?
BONY FISH
* Skeleton is made of bone
* Dermal scales cover the skin
* Gills are covered by an
operculum
* Have a lateral line to sense
movement in the water (also
found on sharks)
What organisms are in this class Amphibia?
FRONGS<,TOADS, SALAMANDERS
- Amphibious means dual life
– Live on land and in the water
– Were the first vertebrates on land
– Are evolutionary link between fish and reptiles
What are the characteristics of the class Reptilia?
- Adaptations for staying on the
land
– Scales
– Protective covering for eggs - Keeps predators out and moisture in
– Limbs modified for rapid
movement on land - Ectothermic
– Temperature comes from outside
What are the characteristics of the class Aves?
- Have feathers and are capable of
flight - Evolved from reptiles
– Fossil evidence of young dinosaurs
having feathers
– Bone structure is similar in some
reptiles and birds
– Some extinct birds had reptilian
teeth, tails, and claws
How is the yolk of the sea urchin distrbuted?
Distributed evenly
What happens in the blastula phase in a sea urchin, and frog?
The blastocoel forms
What is formed during the gastrula phase in sea urchins that is super important?
The three germ layers. (mesoderm, endoderm, exoderm)
What does the ectoderm layer form in the gastrula phase?
skin, sense organs and nervous
system
What does the mesoderm layer form in the gastrula phase?
muscles, skeletal elements and
blood
What does the endoderm layer form in the gastrula phase?
digestive system
What happens during neuralation?
It forms the neural tube
How is the yolk of the frogs distributed?
Unevenly
LOOK AT PICTURES THAT ARE LABELED FOR THE CHICKEN, SEA URCHIN, AND FROG IN THE SLIDES