K.C.S.E Biology Q & A - MODEL 2011PP1QN03
Give three reasons for classifying organisms.
answers
​(i) Identify similarities and differences between organisms;
(ii) Organize scientific knowledge in an orderly system; (iii) Monitor emergence, presence and disappearance of organisms in and from the earth; (iv) Grouping organisms for easy stud
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K.C.S.E Biology Q & A - MODEL 2010PP1QN29
The diagram below represents a female cone.
​(a) Name the subdivision of the plant from which the cone was obtained.
(b) Other than the presence of cones, name two other external features that identify plants in the subdivision named in (a) above.
answer
(a) Gymnospermae;
(b) Needle-like leaves (with waxy cuticle); Naked seeds; K.C.S.E Biology Q & A - MODEL 2010PP1QN12
The diagram below illustrates the structure of bread mould.
(a) Name the part labelled J.
J K (b) State the functions of the structure labelled K.
answers
(a) J – sporangium
K-Rhizoids (b)- Absorption of soluble substances/ digested food - Secretion of digestive enzymes; - Anchorage(of mould on substrate);
K.C.S.E Biology Q & A - MODEL 2010PP1QN08
State three external differences between chilopoda and diplopoda.
K.C.S.E Biology Q & A - MODEL 2009PP1QN01
State two characteristics of fungi
ANSWERS
K.C.S.E Biology Q & A - MODEL 2009PP1QN01
Name the external feature which is common in birds, fish and reptiles
answer
K.C.S.E Biology Q & A - MODEL 2008PP1QN25
Giving a reason in each case, name the class to w which each of the following organisms
Bean plant Reason Bat Reason
ANSWERS
Bean plant - Dicotyledonae
Reason Leaves have net veined; two cotyledon; tap root system; xylem with phloem in between the arms Bat Flying mammal Reason Have sweat glands; 3 ear ossicle; presence of fur; mammaring glands What is the formula for calculating linear magnification of a specimen when using a hand lens?21/6/2020
K.C.S.E Biology Q & A - MODEL 2007PP1QN02
What is the formula for calculating linear magnification of a specimen when using a hand lens?
K.C.S.E Biology Q & A - MODEL 2007PP1QN01
Give two reasons why classification is important
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN01
What is meant by the term binomial nomenclature
answer
K.C.S.E Biology Q & A - MODEL 2006PP1QN06
State three characteristics of Monera that are not found in other kingdoms.
answers
K.C.S.E Biology Q & A - MODEL 2005PP1QN05
To which class does an animal with two body parts and four Pairs of legs belong?
ANSWERS
K.C.S.E Biology Q & A - MODEL 2004PP1QN08
Name the class in the phylum arthropoda which has the largest number of individuals?
answer
K.C.S.E Biology Q & A - MODEL 2003PP1QN02
Name the phylum whose members possess notochord
answer
K.C.S.E Biology Q & A - MODEL 2002PP1QN01
Beside the abdomen, name the other body part of members of Arachnida,
answers
K.C.S.E Biology Q & A - MODEL 1999PP1QN10
Below is a list of organisms, which belong to classes Insecta, Myriapoda and Archnida: Tick, centipede, praying mantis, tsetse fly, millipede and spider. Place the organisms in their respective classes in the table below.
Give reason in each case. K.C.S.E Biology Q & A - MODEL 1997PP1QN02
A student caught an animal which had the following characteristics:
ANSWERS
K.C.S.E Biology Q & A - MODEL 1996PP1QN 21
Explain how the mammalian skin is adapted to perform its functions
ANSWERS
​The cornified layer is made up of dead cells, that prevent entry of bacteria and prevent physical damage; melanin protects the body against U-V variation; sebaceous glands produce a chemical/ ring substance which is of blood vessel; which when the body temperature is high dilate and heat is lost or when body temp is low blood vessels constrict.
And heat is retained. Hair when it is called, stands and traps air between themselves; to retain heat/ stop heat loss or when it is hot hair lies flat close on the skin; so does not trap air, and therefore heat is retained and sweat is lost; the skin has sweat glands which produces sweat; sweat evaporates thus cooling the body. Describe how excretion takes place in |
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