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Zoology C BSc Part II Quiz

Zoology C BSc Part II Quiz

Chapter 1: Hemichordates and chordates

Subjective:


Class: BSc Part II                     

Subject: Zoology (C)

Date: 19-05-2020                    

Marks: 20 , CH 01

Short Questions:                                    5x3 = 15
1) Give general characteristics of Hemichordates?
2) Write four unique characteristics of  Chordates?
3Differentiate between oral siphon and Atrial siphon?
4) Describe preproduction and development in Urochordates?
5) What is Notochord?

Long Question:                                    5x1 = 5

1)Write a detail note on Cephalochordates?


Objective:

Zoology C ( BSc Part II)
Chapter 1: Hemichordates and chordates

The size of enteropneusts worms is ranges between
7 - 10 cm
30 - 40 cm
10 - 40 cm
10 - 30 cm

Metabolic waste products of acorn worms is
urea
Ammonia
Uric acid
Nitrogen

Larvae of enteropneusts is called.
Planula
Ammocoete
Tornaria
Tadpole

Class pterobranchia includes species.
20
70
50
45000

Four unique characteristic are found in phylum.
Hemichordata
Chordata
Urochordata
Cephalochordata

A structure that extends posteriorly beyound the anal openings
Endostyle
Pharyngeal slits
Oral siphon
Postanal tail

A connective tissue like covering present in tunicates
Epidermis
Tunic
Siphon
Stigmas

Cilliated groove present in urochordates is
Stolon
Atrium
Endostyle
Tunic

Sea squirts belong to subphylun
Cephalochordata
Urochordata
Hemichordata
Chordata

Tunicate blood plasama is colorless due to
Columnar cells
Red cells
Ameboid cells
Rectangular cells

Urochordates are
Dioecious
Monoecious
Monogamous
Polyandrous

Ciliated, fingerlike projections in cephalochordates are
Stigmas
Tentacles
Cirri
Pores

Fertilization in cephalochordates is
Internal
External
Marine

Genera of cephalochordates are
One
Two
Three
Four

Members of cephalochordates are called
Lancelets
Tunicates
Acorn worms
Thaliaceans

Cephalocordates includes species
30
35
40
45

U-Shaped digestive tract found in
Pterobranchia
Planctosphaeroidea
Enteropneusta
Ascidiacea

Members of class sorberacea are
Predators
Plant feeder
Carnivorous
Planktonic feeeder

Division of coelom in hemichordates are
Two
Three
Four
Five

The common name of enteropneusts is derived from the appearance of
Endostyle
Atrium
Nerve plexus
Proboscis

The digestive tract of enteropneusts is
Complex tube
Simple tube
Hollow tube
Porous tube

Pterobranchs are ranging in size between
0.1 to 5 mm
7 to 10 mm
10 to 40 mm
0.1 to 7 mm

Blood of acorn worms is
Color less
Pink
Red
White

Planula like larvae found in
Pterobranchia
Enteropneusta
Urochordata
Chordata

Supportive rod present in chordates
Notochord
Endostyle
Digestive tract
Proboscis

Asymmetron includes in subphylum
Urochordata
Enteropneusta
Pterobranchia
Cephalochordata

Cephalon means in cephalochordata
Mouth
Teeth
Foot
Head

Coelom is reduced in
Enteropneusts
Pterobranches
Urochordates
Cephalochordates

One siphon which is inlet for water circulating through the body
Atrium
Oral siphon
Atrial siphon

Size of mouth of pterobranches
5 mm
10 mm
15 mm
20 mm

Tornaria larva becomes after elongation
1 mm
2 mm
3 mm
4 mm

Digestive tract in chordates is
Open
Close
Incomplete
Complete

Asexual budding is found in
Cephalochordates
Chordates
Enteropneusts
Pterobranches

Gases exchange and waste exchange is done by ---- in pterobranchs
Active transport
Diffusion
Osmosis
Facilatated diffusion

Acorm worms are the members of
Hemichordates
Chordates
Urochordates
None


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