Know how to determine which taxa are most related.
...
Know how to determine how many traits are shared.
...
Know how to read an evolutionary tree.
...
What do nodes on a phylogenetic tree represent?
Divergence event
For each of the following organisms, what type of microscope would you use?
Amoeba (250-750 microns)
Hydra (20-30 mm)
Amoeba: compound
Hydra: dissecting
True or false: When preparing wet mount slides, you should press the cover slip down as hard as possible to avoid excess air bubbles
False
Know how to differentiate types of microscopes and how to label parts.
...
Know how to properly store a microscope.
...
Know anatomical directional terms.
...
Which is not allowed in lab?
Flip flops
Bookbags
Water bottles
Food/wrappers
Flip flops
Water bottles
Food/wrappers
The presence of which structure distinguishes hydrozoa from scyphozoa?
velum
What structure in the ctenophore is responsible for its locomotion? Know how to label.
Comb rows
What class of cnidarian is known as "flower animals"?
Anthozoa
Know how to label oral disc and gastrovascular cavity on the Metridum.
...
Obelia is a _________ organism, meaning it is made up of several different kinds of polyps with various functions.
Colonial
Know how to label a gonangium on a polyp.
...
True or false: Scyphozoa, aka "true jellies" are solitary animals.
True
Know the cell and organelle within a cnidarian that uses poison barbs to kill enemies.
Cell: cnidocyte
Organelle: nematocyst
Cnidaria are ________ meaning they can exhibit two main body forms: the polyp and medusa forms.
Dimorphic
Which cnidarian class discussed in lab can only exist in the sessile form?
Anthozoa
Match the characteristic to the phylum.
Characteristics: Colloblast, nematocyst, biradial symmetry, radial symmetry
Phyla: Cnidaria, ctenophora
Cnidaria: nematocyst, radial symmetry
Ctenophora: colloblast, biradial symmetry
Be able to label reproductive structures (ovaries, testes, genital pore, uterus) of the cestoda proglottid.
...
How can you tell if a proglottid is gravid? Be able to differentiate.
Gravid proglottids have a majority of nerves and reduced reproductive structures
Turbellarians engulf food via a structure called?
Pharynx
Do turbellaria have cilia present? Why or why not?
Yes because they are free-living, non parasitic organisms
Give at least 2 examples of characteristics of rotifers as ecological indicators.
1. Certain ones only live in low oxygen environments so if those are in your area, it can indicate bad oxygen quality
2. Their structure can indicate their predation rate, which shows if they are in an optimal environment
Rotifers are _________ and platyhelminthes are ________.
(acoelomate/psueducoelomate/coelomate)
Rotifers are pseudocoelomate
Platyhelminthes are acoelomate
Be able to label bdelloids and know the function of their structures.
ie. Trophi: jaws to break down food
Similarities between Platyhelminthes and Cnidarians?
Triploblasts, gastrovascular cavity, radial symmetry, flame cells
Only gastrovascular cavity
Match one digestive feature with the class of platyhelminth.
Feature: absorption through tegument; pharynx and gastrovascular cavity; oral sucker with intestines and excretory pore
Platyhelminth classes: Trematoda (fluke) and Cestoda (tapeworm)
Trematoda: oral sucker with intestines and excretory pore
Cestoda: absorption through tegument
Parapodia are used for?
Locomotion and respiration
Match the following characteristics to the appropriate Annelid.
Carnivore, detritivore, oligochaete, ectoparasite, polychaete, clitellum
Leeches, Earthworms, Clamworms
Leeches: ectoparasite, oligochaete, clitellum
Earthworms: clitellum, oligochaete
Clamworm: carnivore, polychaete
What structure is responsible for waste excretion in Annelids?
nephridiopores
Know how to label a clitellum on a worm. What is the function?
reproductive structure
Which of the following is NOT a feature of Annelids?
Complete digestive tract, open circulatory system, circular and longitudinal muscles, respiratory gas exchange
open circulatory system
Annelids are _________, meaning they are made of many segments.
Metameric
Leeches lack the hairlike projections known as _________ that are typically characteristic of polychaetes or oligochaetes.
setae
All mollusca can produce _______ larva which move via a ciliated band, while only two families of freshwater clams can produce _________ larva which possess hooks for latching onto gills of other fish.
trocophore,
glochidium
Match at least 2 characteristics to each class.
"Stomach-footed," radula, two-lobed mantle, separate sexes, "head footed," absent shell, monoecious AND diecious, plate-like gills
Gastropoda vs. Cephalopoda
Gastropoda: monoecious and diecious, radula
Cephalopoda: radula, "head footed
Be able to label structures on the squid. (gill, branchial heart, beak, siphon, ink sac)
...
How can you tell what side of the squid you are looking at?
If you can see the siphon, it is the posterior side
Be able to label the structures of a clam (foot, labial palp, posterior adductor, anterior adductor, gill)
...
What class does a clam belong to?
Bivalvia
Name at least 2 basic retained features in Mollusca we discussed in Annelida.
Mollusca are coelomate and have spiral cleavage.