Cnidaria, Porifera, Playhelminthes, Nematoda, Rotifera, Mollusca Flashcards
Sponges are in phylum
Porifera
Jellyfish and hydras are in phylum
Cnidaria
Flatworms are in phylum
Platyhelminthes
Roundworms are phyla
Nematoda
Rotifers are in phyla
Rotifera
Clams, snails, squid, oysters, scallops are in phyla
Mollusk a
Earthworms and leeches are in phylum
Annelida
Three types of mollusca
Bivalves, Gastropoda, Cephalopoda
Both mollusk a and Annelida have
Bilateral symmetry, coelom, protostome, multicellular, and three germ layers.
How many hearts of squid
Three
Thin tissue that encloses visceral mass and may secrete. She’ll in mollusks
Mantle
In mollusks that enclose the internal organs
Visceral mass
How the clams filter feed with what structure inside shell
Siphon
Cephalization is another term for blank
Had
Segmented worms
Annelida
Earthworms use what hairy structures to help them move
Setae
Secretes mucus and holds worms together during mating
Clitellum
Digestive system of earthworm in order
Pharynx, esophagus, crop, gizzard
What earthworm eats
Detritus
Little white structures that are part of earthworms excretory system
Nephridia
In earth worm the seminal blanks are bigger than the seminal blanks
Vesicles bigger than receptacles
A fold in worms that increase the intestines surface area
Typhlosole
cells of animals are organized into blank and blank
tissues and tissue layers
five key transitions noted in animal evolution
tissues, symmetry, body cavity, development, segmentation
sponges are these and they lack tissues and organs
parazoa
all other animals are these and they have distinct tissues
eumetazoa
which has symmetry? parazoa or eumetazoa
eumetazoa
the plane that bisects an animal with bilateral symmetry into two halves
mid-sagittal plan
two advantages of symmetry:
cephalization and greater mobility
how many germ layers produced by eumetazoa
three
body coverings and nervous system germ layer
ectoderm
skeleton and muscles germ layer
mesoderm
digestive organs and intestines
endoderm
space in between tissues, surrounded by mesoderm
coelom
body cavity between mesoderm and endoderm
pseudocoelomates
body cavity entirely within the mesoderm
coelomates
zygote dvides to form a blank
blastula
holllow ball of cells
blastula
this becomes an opening to the digestive system
blastopore
type of cleavange in protostomes and the cells move as they divide
spiral
type of cleavage in deuterostomes and cells stay in position as they divide
radial
determinate development becuase if you remove one cell, development ceases
protostomes
indeterminate development because embryonic cells can develop a new individual
deuterostomes
coelom forms simply and directly from splitting the mesoderm in
protostomes
coelom forms indirectly from outpocketing of the archenteron in
deuterostomes
blank evolved from blank about how many mya
deuterostomes….protostomes…500 mya
two advantages of segmentation
allows redundant organ systems, and allows for more efficient and flexible movement
lack symmetry and tissues
parazoa
have symmetry and tissues
eumetazoa
have two germ layers
diploblastic
have three germ layers
triploblastic
how are triploblastic animals divided today?
genetics
the animal kingdom is
monophyletic
two theories of where protists came from
multinucleate hypothesis, colonial flagellate hypothesis
which theory of where protists came from is supported by molecular systematics today
colonial flagellate hypothesis
enormous expansion of animal diversity in the Cambrian period
cambrian explosion
how did the cambrian explosion occur
the Hox developmental gene complex evolved
Fungi spores are always blank, no matter what
Haploid
Collemchyma, parenchyma, and sclerenchyma are all blank tissue
Ground
Leaves do not have blank
Pericycle
Phloem consists of blank
Sieve tube members
Blank causes seed germination
Gibberellic acid
What regulates direction of cell expansion in plants?
Direction of cellulose reinforcement
Phloem has cells separated by blank
Sieve plates
Root pressure can result in blank
Guttation
Root pressure is independent or dependent on transpiration
Independent
These promote lateral bud growth in branches
Cytokinins
Plants tolerate supercooling by increasing blank in blank
Saturated lipids in plasma membranes
Parazoans first separated from blank
Eumetazoans
larval sponges are different from adult sponges because they are
free-swimming
the inner layer of porifera contains blank
choanocytes which are also called collar cells
central layer of porifera which are gelatinous and are called blank
mesohyl
sponges digestion is known as blank
intracellular
type of digestion where each cell eats on its own
intracellular
where waste exits from the spong
osculum
Asexual reproduction of a sponge is called blank
fragmentation
larval sponges are produced by blank reproduction and use blank for swimming
sexual, cilia
have radial symmetry and two germ layers… examples are cnidaria and ctenophora
diploblasts
The layers of a diploblast are called
epidermis, gastrodermis, and in between is the mesoglea