LSU Biol 1002 exam 2 study guides
And Answers.
- multicellular
- no cell wall
- heterotrophs
- most produce sexually
- motile at some point
- respond rapidly to stimuli - Answer 6 key features of animals
radial - Answer this symmetry can be divided roughly into equal halves by any plane that
passes through central axis
bilateral - Answer this symmetry can be divided into mirror images only along the plane that
runs down the midline
porifera - Answer this phyla is immobile, can reprodice both sexually and asexually, do not
have true tissues or organs
cnidarian - Answer this phyla is well-armed, carnivorous predators; lack true organs and have
no actual brain; have stinging cells
cnidocytes - Answer the stinging cells of cnidaria
ctenophora - Answer this phyla is comb jellies, use cilia to move, carnivorous,
hermaphroditic
platyhelminthes - Answer flatworms, hermaphrodites, have organs but no respiratory and
circulatory systems, ganglia, gas exchange thru skin, ex. tapeworms
ganglia - Answer brain of platyhelminthyse
annelida - Answer this phyla is segmented worms. reproduce both sexually and asexually.
some hermaphrodites
mollusca - Answer this phyla mostly has shells and reproduce sexually
, arthropoda - Answer this phyla is the most diverse and abundant animals. includes insects,
arachnids, myriapods and crustaceans. have appendages and an exoskeleton.
nematoda - Answer this phyla is roundworms, reproduce sexually, most are free-living non
parasitic that break down organic matter but some are parasitic
echinoderms - Answer this phyla has a calcium carbonate skeleton, include sand dollars, sea
urchins, sea stars, sea cucumbers and sea lillies. most reproduce sexually with external
fertilization. some can regenerate
gastropods, bivalves, cephalods - Answer 3 classes of mollusks
snails - Answer example of gastropods
clams - Answer example of bivalves
octopus - Answer example of cephalopods
chitin - Answer arthropoda have an exoskeleton made of _____
butterflies ... moths - Answer _______ fly during the day and ______ fly at night. These
insects are the most well-studied group. evolved with flowering plants
bees, ants, wasps - Answer these 3 insects are equipped with stinger. have complex social
behaviors where individuals have specific tasks
beetles - Answer these insects make up 1/3 of all known insect species. they have hard
exoskeleton structure that covers wings. some destroy agriculture while some control pests
arachnids - Answer predator meat eaters such as spiders, mites, ticks and scorpions.8 legs.
no antennae. sensory hairs
centipedes - Answer this myriapod is carnivorous and have 1 pair of legs per body segment
millipedes - Answer this myriapod is herbivorous and have two pairs of legs per body
segment
And Answers.
- multicellular
- no cell wall
- heterotrophs
- most produce sexually
- motile at some point
- respond rapidly to stimuli - Answer 6 key features of animals
radial - Answer this symmetry can be divided roughly into equal halves by any plane that
passes through central axis
bilateral - Answer this symmetry can be divided into mirror images only along the plane that
runs down the midline
porifera - Answer this phyla is immobile, can reprodice both sexually and asexually, do not
have true tissues or organs
cnidarian - Answer this phyla is well-armed, carnivorous predators; lack true organs and have
no actual brain; have stinging cells
cnidocytes - Answer the stinging cells of cnidaria
ctenophora - Answer this phyla is comb jellies, use cilia to move, carnivorous,
hermaphroditic
platyhelminthes - Answer flatworms, hermaphrodites, have organs but no respiratory and
circulatory systems, ganglia, gas exchange thru skin, ex. tapeworms
ganglia - Answer brain of platyhelminthyse
annelida - Answer this phyla is segmented worms. reproduce both sexually and asexually.
some hermaphrodites
mollusca - Answer this phyla mostly has shells and reproduce sexually
, arthropoda - Answer this phyla is the most diverse and abundant animals. includes insects,
arachnids, myriapods and crustaceans. have appendages and an exoskeleton.
nematoda - Answer this phyla is roundworms, reproduce sexually, most are free-living non
parasitic that break down organic matter but some are parasitic
echinoderms - Answer this phyla has a calcium carbonate skeleton, include sand dollars, sea
urchins, sea stars, sea cucumbers and sea lillies. most reproduce sexually with external
fertilization. some can regenerate
gastropods, bivalves, cephalods - Answer 3 classes of mollusks
snails - Answer example of gastropods
clams - Answer example of bivalves
octopus - Answer example of cephalopods
chitin - Answer arthropoda have an exoskeleton made of _____
butterflies ... moths - Answer _______ fly during the day and ______ fly at night. These
insects are the most well-studied group. evolved with flowering plants
bees, ants, wasps - Answer these 3 insects are equipped with stinger. have complex social
behaviors where individuals have specific tasks
beetles - Answer these insects make up 1/3 of all known insect species. they have hard
exoskeleton structure that covers wings. some destroy agriculture while some control pests
arachnids - Answer predator meat eaters such as spiders, mites, ticks and scorpions.8 legs.
no antennae. sensory hairs
centipedes - Answer this myriapod is carnivorous and have 1 pair of legs per body segment
millipedes - Answer this myriapod is herbivorous and have two pairs of legs per body
segment
