SFSU Bio 240 Exam 3 Questions And Answers
Verified 100% Correct
evolution - ANSWER -Evolution is change in the heritable characteristics of
biological populations over successive generations.
ecdysozoa - ANSWER -Ecdysozoa is a group of protostome animals, including
Arthropoda, Nematoda, and several smaller phyla
Echinodermata - ANSWER -Echinoderm is the common name given to any
member of the phylum Echinodermata of marine animals. The adults are
recognizable by their radial symmetry, and include such well-known animals as
sea stars
ectoderm - ANSWER -the outermost layer of cells or tissue of an embryo in early
development, or the parts derived from this, which include the epidermis and nerve
tissue.
endoderm - ANSWER -the innermost layer of cells or tissue of an embryo in early
development, or the parts derived from this, which include the lining of the gut and
associated structures.
Eumetazoa - ANSWER -Eumetazoa or Diploblasts, or Epitheliozoa, or Histozoa
are a proposed basal animal clade as sister group of the Porifera. The basal
Eumetazoan clades are the Ctenophora and the ParaHoxozoa
sponges
eusociality - ANSWER -the highest level of organization of animal sociality, is
defined by the following characteristics: cooperative brood care (including care of
offspring from other individuals), overlapping generations within a colony of
adults, and a division of labor into reproductive and non-reproductive groups.
eutherian - ANSWER -a mammal of the major group Eutheria, which includes all
the placentals and excludes the marsupials and monotremes.
excurrent siphon - ANSWER -A siphon is an anatomical structure which is part of
the body of aquatic molluscs in three classes: Gastropoda, Bivalvia and
, Cephalopoda Siphons in molluscs are tube-like structures in which water flows (or
more rarely in which air flows).
gastrula - ANSWER -an embryo at the stage following the blastula, when it is a
hollow cup-shaped structure having three layers of cells.
gnathostomes - ANSWER -Gnathostomata are the jawed vertebrates. The term
derives from Greek: γνάθος "jaw" + στόμα "mouth". Gnathostome diversity
comprises roughly 60,000 species, which accounts for 99% of all living vertebrates
haplodiploid - ANSWER -denoting or possessing a genetic system in which
females develop from fertilized (diploid) eggs and males from unfertilized
(haploid) ones.
hemimetabolous - ANSWER -(of an insect) having no pupal stage in the transition
from larva to adult.
heterotroph - ANSWER -an organism deriving its nutritional requirements from
complex organic substances.
holometabolous - ANSWER -Complete, or holometabolous, metamorphosis is
characteristic of beetles, butterflies and moths, flies, and wasps. Their life cycle
includes four stages: egg, larva (q.v.), pupa (q.v.), and adult. The larva differs
greatly from the adult.
kin selection - ANSWER -natural selection in favor of behavior by individuals
that may decrease their chance of survival but increases that of their kin (who share
a proportion of their genes).
Lepidosaur - ANSWER -The Lepidosauria are reptiles with overlapping scales.
This subclass includes Squamata and Rhynchocephalia. It is a monophyletic group
and therefore contains all descendents of a common ancestor.
Lophotrochozoa - ANSWER -Lophotrochozoa is a clade of protostome animals
within the Spiralia. The taxon was established as a monophyletic group based on
molecular evidence. worms
Lobe-fin fishes - ANSWER -The Sarcopterygii or lobe-finned fish - sometimes
considered synonymous with Crossopterygii - constitute a clade of the bony fish,
though a strict cladistic view includes the terrestrial vertebrates.
Verified 100% Correct
evolution - ANSWER -Evolution is change in the heritable characteristics of
biological populations over successive generations.
ecdysozoa - ANSWER -Ecdysozoa is a group of protostome animals, including
Arthropoda, Nematoda, and several smaller phyla
Echinodermata - ANSWER -Echinoderm is the common name given to any
member of the phylum Echinodermata of marine animals. The adults are
recognizable by their radial symmetry, and include such well-known animals as
sea stars
ectoderm - ANSWER -the outermost layer of cells or tissue of an embryo in early
development, or the parts derived from this, which include the epidermis and nerve
tissue.
endoderm - ANSWER -the innermost layer of cells or tissue of an embryo in early
development, or the parts derived from this, which include the lining of the gut and
associated structures.
Eumetazoa - ANSWER -Eumetazoa or Diploblasts, or Epitheliozoa, or Histozoa
are a proposed basal animal clade as sister group of the Porifera. The basal
Eumetazoan clades are the Ctenophora and the ParaHoxozoa
sponges
eusociality - ANSWER -the highest level of organization of animal sociality, is
defined by the following characteristics: cooperative brood care (including care of
offspring from other individuals), overlapping generations within a colony of
adults, and a division of labor into reproductive and non-reproductive groups.
eutherian - ANSWER -a mammal of the major group Eutheria, which includes all
the placentals and excludes the marsupials and monotremes.
excurrent siphon - ANSWER -A siphon is an anatomical structure which is part of
the body of aquatic molluscs in three classes: Gastropoda, Bivalvia and
, Cephalopoda Siphons in molluscs are tube-like structures in which water flows (or
more rarely in which air flows).
gastrula - ANSWER -an embryo at the stage following the blastula, when it is a
hollow cup-shaped structure having three layers of cells.
gnathostomes - ANSWER -Gnathostomata are the jawed vertebrates. The term
derives from Greek: γνάθος "jaw" + στόμα "mouth". Gnathostome diversity
comprises roughly 60,000 species, which accounts for 99% of all living vertebrates
haplodiploid - ANSWER -denoting or possessing a genetic system in which
females develop from fertilized (diploid) eggs and males from unfertilized
(haploid) ones.
hemimetabolous - ANSWER -(of an insect) having no pupal stage in the transition
from larva to adult.
heterotroph - ANSWER -an organism deriving its nutritional requirements from
complex organic substances.
holometabolous - ANSWER -Complete, or holometabolous, metamorphosis is
characteristic of beetles, butterflies and moths, flies, and wasps. Their life cycle
includes four stages: egg, larva (q.v.), pupa (q.v.), and adult. The larva differs
greatly from the adult.
kin selection - ANSWER -natural selection in favor of behavior by individuals
that may decrease their chance of survival but increases that of their kin (who share
a proportion of their genes).
Lepidosaur - ANSWER -The Lepidosauria are reptiles with overlapping scales.
This subclass includes Squamata and Rhynchocephalia. It is a monophyletic group
and therefore contains all descendents of a common ancestor.
Lophotrochozoa - ANSWER -Lophotrochozoa is a clade of protostome animals
within the Spiralia. The taxon was established as a monophyletic group based on
molecular evidence. worms
Lobe-fin fishes - ANSWER -The Sarcopterygii or lobe-finned fish - sometimes
considered synonymous with Crossopterygii - constitute a clade of the bony fish,
though a strict cladistic view includes the terrestrial vertebrates.
