Question 1 of 20 2,572 total questions
The pathogen that cause smallpox is
A picornavirus
B peramyxovirus
C herpesvirus
D poxvirus
Fibrinogen and prothrombin play important roles in the
A deamination of proteins
B clotting of blood
C detoxication of substances
D storage of vitamins
The largest amount of yolk is found in the egg of
A amphibians
B pisces
C repitles
D aves
If the cross of a red-flowered plant with a white flowered plant produces a pink flowered plant, this is an example of
A codominance
B incomplete dominance
C mutation
D linkage
The movement of blood between the heart and all other parts of the body besides the lung is known as
A systemic circulation
B closed circulatory system
C pulmonary circulation
D single circulation system
Which of the following animals has homodont dentition?
A Rat
B Man
C Lizard
D Pigeon
which of the following is an agent of a sexually transmitted disease?
A Entamoeba histolytica
B Salmonella typhi
C Treponema pallidum
D Clostridium tetani
Which of the following protects the essential parts of the flower at bud stage?
A Stamens
B Sepals
C Petals
D Carpels
Which of the following theories was NOT considered by Darwin in his evolutionary theory?
A variation
B survival of the fitest
C use and disuse
D competition
An example of an endospermous seed is
A been seed
B cashew nut
C cotton seed
D maize grain
The ability of a living organism to detect and respond to changes in the environment is referred to as
A locomotion
B taxis
C irritability
D growth
Which of the following plant hormone is responsible for ripening of fruits?
A Gibberellins
B Abscisic acid
C Ethylene
D Cytokinins
When a cell is placed in solution and the size of the cell increases, the concentration of solution is said to be
A isotonic
B dilute
C hypotonic
D hypertonic
The insects in which the maxillae are modified into a long coiled proboscis is
A housefly
B butterfly
C mosquito
D grasshopper
Which of the following conditions is NOT necessary for photosynthesis to take place?
A ChlorophyII
B Light
C Carbon(II)oxide
D Carbon(IV)oxide
Enzyme ptyalin acts on starch in the
A oesophagus
B large intestine
C mouth
D stomach
The removal of remnant particles of digestion from the body is called
A assimilation
B egestion
C elimination
D excretion
White blood cells are also known as
A erythrocytes
B leucocytes
C lymphocytes
D phagocytes
The following are ductless glands except
A adrenal
B pancreatic
C parathyroid
D salivary
The vector that transmit trypanosome is the
A butterfly
B housefly
C mosquito
D tsetse fly
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