Lab Final Flashcards
What phylum are starfish
Echinodermata
What class are starfish
Asteroidea
What type of symmetry do starfish have
Pentaradial
Are starfish protostomes or deuterostomes
Deuterostomes
What side is the starfish mouth on
Ventral/Oral
What side is the starfish anus on
Dorsal/Aboral
What are the green leafy things running down either side of the starfish arm
Hepatic Caecum
The circle that encompasses the mouth of the starfish, channels water into the radial canals that extend into starfish arms
The ring canal
Little dudes used for locomotion, feeding, and respiration
tube feet
lumpy/ball thing at the junction between starfish legs
gonads
The part of the tube feet that is a bulbous sac attached to the water vascular system
Ampula
Light callous opening on the aboral side of the starfish that acts as a filter allowing water in
Madreporite
Characteristics of chordates
Pharyngeal slits, post anal tail, dorsal hollow nerve chord, notochord
In a bisected image of a lancelet the ______ chord is on “top” (dorsal to the) of the thicker ______
Nerve chord, notochord
What animal did we put in the alcohol and the ethanol
Daphnia
What phylum is daphnia
Arthropoda
What type of circulatory system do daphnia have
Open
What is unique/useful about daphnia
They are an “indicator” species and indicate water quality
What did ethanol do to the daphnia
heart rate decreased
What did caffeine do to the daphnia
heart rate was increased
What was the dependent variable in the daphnia heart rate lab
heart rate (y)
What was the independent variable in the daphnia heart rate lab
solution (x)
What is the formula for standard error
Standard deviation divided by square root of the number of samples
Where is the daphnia heart
on the dorsal side, above the egg pouch
