Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.
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Question 641: Blood grouping in human beings is derived from combinations of
Options:
A) two different alleles
B) four different alleles
C) three different alleles
D) two different genes
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The correct answer is B .
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Question 642: Plants that show secondary growth are usually found among the
Options:
A) thallophytes
B) pteridophytes
C) monocotyledons
D) dicotyledons
Show Answer
The correct answer is D .
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Question 643: Which of these is not a characteristics of a wind pollinated flowers?
Options:
A) A smaller quantities of sticky pollen produce
B) Feathery styles of stigmas pendulously hang outrside the flower
C) small inconspicuous scentless flower
D) large anthers which are loosley attched to the filament
E) Light pollen grains produced in large quantities from the anthers
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The correct answer is A .
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Question 644:
Which of the following cycles involves the process of precipitation and transpiration?
Options:
A) water cycle
B) carbon cycle
C) nitrogen cycle
D) oxygen cycle
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The correct answer is A .
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Question 645:

Using the diagram, the part labelled IV is for
Options:
A) excretion
B) nourishment
C) protection
D) respiration
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The correct answer is C .
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Question 646:
The part that performs urinogenitalfunction in the male reproductive system is the?
Options:
A) seminal vesacle
B) epididymis
C) urethra
D) ureter
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The correct answer is C .
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Question 647:
| Ecological Zone | Temperature (oC) | Rainfall (mm) |
| I | 45 | 300 |
| II | 32 | 2000 |
| III | 30 | 2200 |
| IV | 15 | 800 |
From the table above which of the zones is likely to be desert?
Options:
A) I
B) II
C) III
D) IV
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The correct answer is A .
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Question 648: Which of the following is a feature of the population pyramid of a developing country?
Options:
A) long lifespan
B) low birth rate
C) low death rate
D) short lifespan
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The correct answer is C .
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Question 649:

Toes of the feet ending in sharp, curved hook suitable for holding and tearing are most likely to belong to the bird with the bill in
Options:
A) I
B) II
C) III
D) IV
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The correct answer is B .
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Question 650:
Cold blooded animals are referred to as
Options:
A) Poikilothermic
B) Homothermic
C) Polythermic
D) Homeostatic
Show Answer
The correct answer is A .