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Gen Zool Lab > Finals > Flashcards

Finals Flashcards

1
Q

It is the thin ganglia situated along side
the systemic arch and dorsal aorta.

A

Right sympathetic trunk.

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2
Q

These are fine threads projecting from the spinal nerves which, when combined with the sympathetic trunk, will form node-like parts, the sympathetic ganglia.

A

Rami communicans.

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3
Q

These are the small nerves projecting from the 3rd and 6th spinal nerves that combine with many unpaired ganglia.
This plexus innervates the stomach, liver, intestine, pancreas, and spleen.

A

Coeliac or solar plexus.

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4
Q

It is the posterior plexus along the posterior mesenteric artery. It innervates the kidneys, sex organs, and oviducts.

A

Urogenital plexus.

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5
Q

Ten cranial nerves

A

Olfactory
Optic
Occulomotor
Trochlear
Tringeminal (trifacial)
Abducens
Facial
Auditory
Glossopharyngeal
Vagus

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6
Q

Cranial nerves with motor function

A

Abducens
Occulomotor (moves eyeballs etc.)
Trochlear (rotates the eyeballs)

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7
Q

Cranial nerves with mixed function

A

Tringeminal
Facial
Vagus
Glossopharyngeal

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8
Q

Anterior part of
olfactory
Lining of the nose

A

Olfactory

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9
Q

Ventro-lateral sides
of the diencephalon
Retina of the eye

A

Optic

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10
Q

Ventral side of
mesencephalon
Four eye muscles
(inf. oblique; sup.
oblique; sup., inf., and
internal recti muscles);
iris, lens, and upper
eyelid

A

Occulomotor

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11
Q

Dorsal side of brain, between mesencephalon and metencephalon
Superior oblique
muscles of the eye

A

Trochlear

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12
Q

Antero-lateral margins
of the myelencephalon
Skin of the head, lips
and muscles of lower
jaw and tongue

A

Tringeminal

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13
Q

Ventral side of
myelencephalon
External recti and
retractor bulbi muscles
of the eye

A

Abducens

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14
Q

Sides of the
myelencephalon
posterior to the
trigeminal
Nasal cavities, roof of
the mouth, ear,
muscles
of the lower jaw, and
skin of the throat

A

Facial

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15
Q

Dorso-lateral margins
of myelencephalon

Inner ear

A

Auditory

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16
Q

Sides of myelencephalon behind origin of facial nerve Muscles and mucous
membrane of the tongue and pharynx

A

Glossopharyngeal

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17
Q

Sides of myelencephalon, in common with the roots of the glossopharyngeal
nerve Shoulder muscles, larynx, esophagus, stomach, lungs, and
heart

A

Vagus

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18
Q

is a branch of science which deals with identification, nomenclature, and classification of organisms.

A

Taxonomy

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19
Q

provides a system that deals with
the kinds and diversity of organisms and their relationships.

A

Taxonomy

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20
Q

is universally accepted. It includes higher levels followed by lower groups of organisms. Taxon and category are
involved in this type of classification.

A

Linnaean classification

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21
Q

is a group of real organisms
recognized as a unit at any level of classifications.

A

Taxon

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22
Q

the basic
categories in Linnaean classification.

A

Kingdom, Phylum,
Class, Order, Family, Genus, and Species

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23
Q

are single-celled animals which may occur singly or in
colonies. They have flagella, cilia, and pseudopodia as their locomotory
organelles, while others do not. They live in fresh water, salt water, and
moist soil.

A

Protozoans

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24
Q

Protozoans are

A

Asymmetrical

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25
Q

Protozoans produce through

A

Sexual and asexual

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26
Q

Superclass of phylum protozoa

A

Superclass Mastigophora.
Sarcodina
Sporozoa
Ciliata

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27
Q

These are protozoans with flagella
as locomotory organelles. They have three types of nutrition like
holozoic, saprozoic, and holophytic modes. Some are free-living or
parasitic. They reproduce asexually through longitudinal fission.

A

Superclass Mastigophora.

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28
Q

Superclass mastigophora types of nutrition

A

holozoic, saprozoic, and holophytic

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29
Q

.
They possess pseudopodia
for locomotion and food capturing. The body is covered with a thin pellicle
Cytoplasm is differentiated into an outer ectoplasm and an inner
endoplasm. They feed on other protozoans and smaller organisms.
Asexual reproduction is done through binary fission or budding.

A

Superclass
Sarcodina

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30
Q

In superclass sarcodina asexual reproduction is done through

A

Asexual reproduction is done through binary fission or budding.

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31
Q

These are protozoans which do not produce locomotory organelles. Spores, however, are produced at the end of their life cycle. All are parasitic. Asexual and sexual means of reproduction
occur. Sexual reproduction takes place through autogamy, while asexual
reproduction takes place through repeated binary or multiple fission.

A

Superclass Sporozoa.

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32
Q

. All possess cilia for food gathering and locomotion.
They possess two types of nuclei: one macronucleus (vegetative) and
micronucleus (reproductive).
Sexual reproduction takes place through
conjugation, and asexual reproduction, through budding and fission.

A

Superclass Ciliata

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33
Q

are without tissues or organs but are multicellular. Cells are
independent. The body wall is perforated with pores, canals, and
flagellated chambers forming a canal system. Skeletons consist of
spicules or sponging fibers or both.

A

Sponges

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34
Q

are rayed or with spines
and are either calcareous, siliceous, or with sponging fibers.

A

Spicules

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35
Q

Class of phylum porifera

A

Calcarea

Hexactinellida

Demospongiae

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36
Q

This class has calcareous spicules and one,three, or four rays. The body may be vase-like or with stalk-like
valves. This is abundant in shallow marine water.

A

Class Calcarea.

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37
Q

This includes, sponges With siliceous
spicules which may be separable or united into networks: They may be
cylindrical or funnel-shaped. They are found in a deep marine water

A

Class Hexactinellida.

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38
Q

This includes animals with one to four
rayed siliceous spicules or sponging fibers, or both. Their bodies have
various shapes. They are mostly marine.

A

Class Demospongiae.

39
Q

are radially symmetrical, acoelomates with two body layers (diploblastic), or with three body layers triploblastic. The third germ layer, the mesoglea, is sometimes differentiated into muscle
tissues. These invertebrates have incomplete digestive tract, diffused
nervous system, and separate or united sexes.

A

Coelenterates

40
Q

There are two types of
individual in coelenterata.

A

polyp and medusa

41
Q

Class in phylum coelenterata

A

Scyphozoa
Hydrozoa
Anthozoa

42
Q

These free-swimming or sessile coelenterates with
thin mesoglea live either singly or form colonies. There are alternation of
generation. The sexual phase is represented by the free-swimming
medusa, and the asexual phase, by the hydroid colony. The polyp is without
pharynx or septa. They live either in marine or fresh water habitats.

A

Class hydrozoa

43
Q

In class hydrozoa, The sexual phase is represented by the free-swimming
______, and the asexual phase, by the______ ______. The polyp is without
______

A

medusa

hydroid colony

pharynx or septa

44
Q

They live either in marine or fresh water habitats.

A

Class hydrozoa

45
Q

Mesoglea are well developed. They are free-swimming solitary forms. Larval stage is polypoid, while the adult is
medusoid. All are marine. They are commonly called the jellyfishes.

A

Class Scyphozoa.

46
Q

In class Scyphozoa, Mesoglea are________ They are free-swimming solitary forms. Larval stage is______, while the adult is
_______. All are marine. They are commonly called the _______.

A

well developed.

polypoid

medusoid

jellyfishes

47
Q

Class_______. They are solitary or colonial polypoid coelenterates.
The medusoid individual is______. The
polypoid individual has ______ and_____ in its gastrovascular cavity. The body
has more or less well developed muscles.

A

Anthozoa

absent

pharynx

septa

48
Q

Phylum_______
include______. pseudocoelomate
worms of_____ symmetry. Their bodies are covered with cuticle. They
have______ digestive tract.

A

Aschelminthes

unsegmented

bilateral

complete

49
Q

Class of phylum aschelminthes

A

Gastrotricha.
Rotifera
Nematoda
Kinorhyncha.
Nematomorpha.

50
Q

. The characteristics of those belonging to this
class are as follows: a simple pharynx, non-segmented cuticle which has
scales or plates which may
be spined,
and hermaphroditic or
parthenogenetic females.

A

Class Gastrotricha

51
Q

Class
______. This includes animals characterized by a pharynx
that is modified into a special grinding structure, the mastax, and cila
forming the anterior ring, the corona. Their sexes separate or they are
________ females. There are three body regions: head, trunk, and
toot with toes, Their digestive tract is_____ and their excretory organ
has_____ cells.

A

Rotifera

parthenogenetic

completé

flame

52
Q

Class_____. Characteristics of this class include: cuticle
with segments, longitudinal muscles with segmental arrangement, and
absence of external cilia. Anterior region may be everted or inverted.
Sexes are separate and all are marine.

A

Kinorhyncha

53
Q

Pharynx is present. Lateral epidermal chords
contain the excretory ducts. The female reproductive system opens at
the exterior. Body is cylindrical and is covered with cuticle. Alimentary
canal is straight.

A

Class nematoda

54
Q

Sexes are separate with females being larger than males. Class
members are aquatic, terrestrial or parasitic in both plants and animals.

A

Nematoda

55
Q

Class________. This class is
characterized by the absence of_____
epidermal chords and excretory ducts.
_______pharynx, female reproductive system opening into the
intestine, parasitic juveniles in arthopods, and_____ sexes.

A

Nematomorpha

lateral

undifferentiated

separate

56
Q

belong the acoelomates, which have
_______symmetrical and_______ bodies, and are flattened
______. Their digestive tract is_______ since the alimentary
canal is embedded in the parenchyma of mesodermal cells. It opens
through the mouth, with flame cells or protonephridia for excretion. They
are______ with respiratory and circulatory systems but with
ladder-like nervous system. Free-living forms are found in fresh and
marine waters and damp places. Some are ecto- or endoparasites with
modified structures and a complicated life cycle.

A

Phylum platyhelminthes

bilaterally

unsegmented

dorsoventrally

incomplete

hermaphroditic

57
Q

Class in phylum platyhelminthes

A

Turbellaria.
Trematoda
Cestoda

58
Q

Class_____. To this class belong free-living unsegmented
flatworms without specialized adhesive organs such as hooks or suckers
but with ventral mouths. Most of them are marine; some are freshwater
and a few are terrestrial.

A

Turbellaria

59
Q

. This class includes unsegmented flatworms, having
an anterior mouth, one or two specialized organs like anterior, posterior or
ventral suckers, and are either ecto- or endo- parasites of vertebrates.

A

Class Trematoda

60
Q

This class is characterized as follows: unsegmented or
pseudometameric parasitic flatworms, without digestive tract, strobilate body,
head with scolex usually with suckers and/or hooks, and endoparasitic.

A

Class Cestoda.

61
Q

are coelomates. The body is divided into similar segments
called somites or metameres, visible externally in grooves or internally
since the coelom is divided into transverse septa. Other characteristics
include: triploblastic and bilaterally symmetrical body, complete digestive
tract, ganglionic nervous system with brain, and a pair of ventral nerve
cords. Their bodies are covered with nonchitinous cuticle. Parapodia and
setae may be present or absent. Nephridian is the excretory organ. Its
circulatory system is closed, while sexes are separated or united.

A

Annelids

62
Q

Class_____. Characteristics of this class are: parapodia
with setae, simple prostomium without appendages, segmented, with
coelom, with well-developed head bearing appendages, and dioecious
(sexes separate). It has free swimming trochophore larva and a marine
habitat.

A

Polychaeta

63
Q

Class_______. This is characterized as follows: no parapodia
with few setae, conspicuous segments, and with intersegmental septa, no distinct head
with appendages, and small prostomium.
It hermaphroditic with genital ducts opening into the coelom by a funnel.
At sexual maturity, clitellum appears. Members of this class are mostly
terrestrial and freshwater organisms.

A

Oligochaeta

64
Q

Class_____. This is characterized as follows: no parapodia
and setae, with 32-34 segments. Prostomium is present; it has two
suckers (anterior and posterior); coelom is reduced and filled with
mesenchyme,
and
it has
dorsoventrally flattened
body. It iS
hermaphroditic, commonly called leech, and found in damp places on
land or in fresh water.

A

Hirudinea

65
Q

Class_______. This is characterized as follows: bilaterally
symmetrical with a shell of light transverse, calcareous plates, and
ctenidia.

A

Amphineura

66
Q

Class______. This is marked by an asymmetrical body with
Well-developed head and foot; it is spirally coiled, and univalved or with
one shell.

A

Gastropoda

67
Q

Class_______. This is characterized by a bilaterally symmetrical
body, a shell with two valves (bivalve) and a mantle with two lobes.

A

Pelecypoda

68
Q

Class_______. Members of this group have a tubular shell
and mantle, a conical foot, and a mouth surrounded by threadlike
tentacles (captucula). They have no distinct head.

A

Scaphopoda

69
Q

Class_______. With bilateral symmetry, this mollusk has a
foot divided into arms with suckers. It has a well-developed nervous
system concentrated in the head. Body is torpedo-shaped with or without
shell and with well-developed head and eyes. Siphon is present.

A

Cephalopoda

70
Q

are radially symmetrical adult but bilateraly
symmétrical larva. They are known for the following; no segmentation
and win well-developed coelom; pentamerous or with five arms or rays
radiating from the center of the body; water-vascular system; tube feet; a
spiny skeleton with calcareous plates; and a complete digestive tract.

A

Echinodermata

71
Q

Class______. This has arms not sharply marked off from the
disk. It is pentamerous and with open ambulacral groove but without
pinnules. The madreporite is aboral near the anus.

A

Asteroidea

72
Q

The class_______. This is characierized as pentamerous and
urbowdender arns sharply marked off from the disk with ambulacral
Groove, madreporite oral near mouth, and an incompiete digestive trad.

A

Ophiuroidea

73
Q

Class_____. This group possesses a globose body and is
pentamerous without arms. The test of calcareous plates bears movable
spines.

A

Echinoidea

74
Q

Class________. This is characterized by a soft, elongated,
and cylindrical body, with muscular wall; it shows no arms and spines;
but with tube feet and tentacles around the mouth.

A

Holothuroidea

75
Q

Class______. Members of this group have branched arms
with pinnules and aboral pole with cirri, stalk for temporary or permanent
attachment, open ambulacral grooves, and tube feet without suckers.
Madreporite is absent.

A

Crinoidea

76
Q

belong animals with bilateral symmetry,
segmented body, with chitinous or calcareous exoskeleton, body with a
head, thorax, and abdomen,
jointed
appendages and, advanced
ganglionic nervous system, compound eyes, complete digestive tract
reduced coelom, excretory organs like malpighian tubules or green
gland, varied respiratory organs such as trachea, booklungs and gills,
and separate sexes. These animals may be found in any habitat.

A

Arthropoda

77
Q

This is characterized by a body divided into
head and thorax fused into cephalothorax, with two pairs of antennae, a
pair of mandible, two pairs of maxilla, thorax with variable number of
appendages which are locomotory or reproductive in function, and with
gills for respiration.

A

Class Crustacea.

78
Q

Its body is divided into cephalothorax and
abdomen. The abdomen may be segmented or unsegmented with four
pairs of legs, two pedipalpi, and two chelicerae with claws. Antennae are
absent and eyes are simple. Booklungs and trachea are used for
respiration.

A

Class Arachnida.

79
Q

Class______. The body is divided into head, thorax, and
abdomen. The head has six fused segments, a single pair of antennae,
one pair of mandible, and two pairs of maxilla. The thorax has three
segments, three pairs of legs, and two pairs of wings. These insects may
be winged or wingless. The abdomen has eleven segments. They have
trachea for respiration. They are mostly terrestrial or aerial, but some are
aquatic during the larval stages.

A

Insecta

80
Q

Class _____. Body is dorsoventrally flattened. Head has six
is of appe
segments with one pair of antennae and three pairs of jaws. Trunk has
a metaso,
many segments, each having one pair of legs except the first which has
alist forn
a pair of poison claws. Last two segments are limbless. Spiracles are
with a te
paired. Most are carnivorous and nocturnal. Gonads are dorsal to
alimentary canal. Genital aperture is in the last segment.

A

Chilopoda

81
Q

Class______. Body is elongated and cylindrical. Head has
five segments with club-shaped antennae, a pair of mandible, and a pair
of maxilla. Thorax is single with four segments. Trunk segments are
double bearing two pairs of legs each. Gonads are ventral to alimentary
canal. Genital aperture is on the third trunk segment. To this class
belong the herbivorous millipedes.

A

Diplopoda

82
Q

Class_________. Prosoma (cephalothorax) has five similar
gads metasoma® R78- 0gpislh soma (abdomen) is divided into mesosoma
the first forms a genital operculum, while metasoma has no appendages
but with a telson.

A

Merostomata

83
Q

This phylum is characterized by bilateral symmetry and true body
gity, such body regions as head, trunk, and tail with notochord dorsal
in digestive tube and ventral to the nerve cord, presence of pharyngeal
its, and found in any habitat.

A

Chordata

84
Q

Subphylum_______. Described as marine; this is characterized
by an asymmetrical body with incurrent and excurrent siphons, a tail with
notochord in the larval stage only, and large and numerous pharyngeal slits.

A

Urochordata

85
Q

Subphylum Cephalochordata. Also described as marine, this
phylums has the following characteristics : notochord along the entire length of the body persising throughout life, and numerous pharyngeal gill slits
gill slits.

A
86
Q

Subphylum______. A vertebral column replaces notochord
in adults. There are few pharyngeal gill slits. Paired appendages are in
the form of fins or limbs. Hindlimbs are modified into flippers or are
absent, while forelimbs are modified into wings.

A

Vertebrata

87
Q

The two laws of probability are the____ Rule and the____ Rule.

A

Product

Sum

88
Q

which states that chromosomes separate from each
other during anaphase or cell division;

A

law of segregation

89
Q

which explains that non-homologous chromosomes behave
independently of each other during cell division.

A

law of independent
assortment which explains that non-homologous chromosomes behave
independently of each other during cell division.

90
Q

are pairs
of genes in the same loci of homologous
chromosomes that control a contrasting observable trait.

A

Alleles

91
Q

is the observable trait of an organism;____ is its
genetic make-up.

A

Phenotype
Genotype

92
Q

_____or pure breeds produce only one kind
of offspring or one kind of gamete, while____- or hybrids
produce two kinds of gametes. In a heterozygote, the observable trait
which is expressed is the____ trait, while one which is not
expressed is the_____ trait.

A

Homozygotes

heterozygotes

dominant

recessive

93
Q

refers to the count of individuals of a species within a
quadrat.

A

Density

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