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Ast101: Agricultu Ral Zoology Question Paper

Ast101: Agricultu Ral Zoology

Course:Bachelor Of Agriculture

Institution: Kenyatta University question papers

Exam Year:2012

KENYATTA UNIVERSITY

UNIVERSITY EXAMINATIONS 2011/2012 ACADEMIC YEAR
1
ST
YEAR 1
ST
SEMESTER EXAMINATION FOR THE DEGREE OF
STREAM: BSC AGRICULTURE & ENT DEVELOPMENT
AST101: AGRICULTU
RAL ZOOLOGY
END SEMESTER:I
TIME: 3 HOURS

INSTRUCTIONS
-
Answer
ALL
questions in section
A
and in Section
B
answer question
six(6)
and
any other two
questions of your
choice
-
Marks are
indicated in brackets ( )
SECTION A
-
40 MARKS
Q.1)
Explain briefly the meaning of the following:
-
a)
Entomology
b)
Ichthyology
c)
Home range
d)
Metamerism
e)
Endangered species
f)
Invitro fertilization
g)
Nephridiostome
h)
Ammonotelics
Q.2)
a)
Apart from backbone and ci
rculatory systems, outline clearly any
other
three(3)
differences between vertebrates and invertebrates
(3 mks)
b)
Outline any
three(3)
features of chordates
(3 mks)
Q.3)
i)
List any
three(
3)
aquatic habitats for fishes
(3 mks)
ii)
Using suit
able diagrams show the differences between homocercal
and heterocercal caudal find
(6 mks)
2
iii)
Outline
five(5)
differences between members of class
chondrichthyes and class Osteichthyes in fishes
(5 mks)
Q.4)
“Sponges are ill equipped to terrestrial
life” Expound
(6 mks)
Q.5)
Explain briefly the
three(3)
distinct orders of class amphibians
(6 mks)
SECTION B
(30 MARKS)
Q.6)
Describe in details the “sensory organs” and „way of life” in mammals
(10 mks)
Q.7)
a)
Differentiate bet
ween evolution and phylogenetic tree
(2 mks)
b)
Describe the evolution of man (
Homo
sapiens
)
Using phylogenic tree starting from 30MYA to 0.1 MYA
(8 mks)
Q.8)
“All living organisms multiply to ensure continuity” with suitable examples.
Explain how
they achieve this process by
a)
Sexual means
(5 mks)
b)
Asexual means
(5 mks)
Q.9)
a)
Explain the significance of biomechanics in animals using suitable
Examples.
(6 mks)
b)
Outline the sources, types and function of nucleic acids
in animals
(4 mks)
Q.10) a)
Differentiate between scholarstic simulation models and
participatory community evaluation technique
(4 mks)
b)
“Population of Black rhino has been on the decline in recent years
in Kenya”. Explain.
(4 mks)

Ast101: Agricultu Ral Zoology Question Paper

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