Lab 6 To 9 Flashcards
What are characteristics of phylum Cnidaria?
Carnivores
2 growth forms medusa and polyps
Have a planula which is a larval stage
Hydra is part of this
What phylum is marine, jellyfish, sea anemones, corals and hydroids part of?
Phylum Cnidaria
Characteristics of hydra?
Phylum Cnidaria Has: Nerve cells 1 opening Diffusion through epidermis Radial symmetry
What phylum is flatworms, tapeworms apart of?
Phylum Platyhelminthes
Characteristics of phylum Platyhelminthes
Known as pathogens which cause disease
Also planarian is part of this phylum
What are the characteristics of planarian?
Part of phylum Platyhelminthes Have: Ganglion "brain" Nerves Nerve cells Sense organs 1 opening Flame cells (nephridia) Diffusion through epidermis Bilateral symmetry
What phylum do insects belong to?
Phylum Arthropoda
characteristics of daphnia
Part of phylum Arthropoda Has: Brain Nerves Nerve cells Sense organs Heart 1 opening Flame cells Diffusion through epidermis Exoskeleton Jointed appendages I
Characteristics of Rats?
Have: Brain Nerves Nerve cells Sense organs Heart Blood vessels 2 openings Kidney Flame cells Lung Endowment on Jointed appendages Bilateral
How to make lab report?
Title Abstract Introduction Methods / materials Results Discussion /conclusion Bibliography
How to use the experimental method?
1) observations and questions
2) proposing hypothesis
3) design an experiment to test hypotheses
Need to have a dependent variable (measuring in response to the independent variable) and independent variable (variable you manipulate) and a controlled group (all other variable which may affect the dependent variable)
4) number of replicates you choose to run
5) experimental design must be repeatable
What is species richness ?
the total number of different species
How to find Simpson index and Simpson reciprocal index ?
Simpson index = total amount of individuals in one specie divide by 1
Simpson reciprocal = take Simpson index number and square and then adding all different species number and then divide by 1
What is plankton? How many kinds?
Organisms that live in water and drift with currents 3 different types: Phytoplankton Zooplankton Bacterialplankton
What is a primitive trait ?
Present in common ancestors
Derived trait?
Not present in common ancestor
What phylum do molluscs (snails, clams ect) come from?
Phylum molluscs
Characteristics of phylum molluscs?
3 tissue layers: endoderm, mesoderm, ectoderm
They are protosomes “first mouth”
Bilateral symmetry
Possess trochophore and/or veliger larvae
What phylum and class are mussels part of?
Phylum molluscs and class Bivalvia
Characteristics of class Bivalvia?
Mussels
Anterior adductor muscle and posterior adductor muscle
Bulge on shell called umbo
Has foot projects out anteriorly
Mantle enclose visceral organs and muscular foot
Suspension feeders (mussels) rely on?
Their ctenidia/gill into bring water into mantle cavity via incurrent siphon and waste out through excurrent siphon
Deep sea hydrothermal vents rely on?
Through a symbiotic relationship with chemosynthetic bacteria housed in the tissue.
Muscle obtain raw materials from environment in exchange for sugars created by bacteria
Characteristics of phytoplankton ?
Consists of Cyanobacteria (blue-green) algae and eukaryotic algae. Photosynthetic and are primary producers of planktonic systems
Characteristics of zooplankton?
Feed primarily on phytoplankton
Few types feed on each other are then considered secondary consumers
