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Biology Questions Answers
The stones present in the gall bladder affect the digestion of—
Protein
Fat
Carbohydrate
Nucleic acid
Fat
Which one of the following is the correct order of biological organisation ranging from organism to biosphere?
Population → Ecosystem → Community → Landscape
Landscape → Community → Ecosystem → Population
Population → Community → Ecosystem → Landscape
Population → Landscape → Community → Ecosystem
Population → Community → Ecosystem → Landscape
Which one of the following pairs of 'Pollutant' and 'Disease caused' is not correctly matched?
Mercury → Minimata disease
Cadmium → Itai-Itai disease
Nitrate Ion → Blue baby syndrome
Fluoride → Indigestion Ion
Fluoride → Indigestion Ion
Biodiversity has maximum danger from—
Destruction of natural habitats and vegetation
Improper agricultural operations
Climate change
Water pollution
Destruction of natural habitats and vegetation
Bats detect obstacles in their path by receiving the reflected—
Infrasonic waves
Ultrasonic waves
Radio waves
Microwaves
Ultrasonic waves
Which one of the following statements is not correct?
Human eye is a refracting system containing a diverging lens
The retina of the human eye contains millions of light sensitive cells, called rods and cones, which convert the light into electrical messages
Every image that is focused on the retina is upside down
We need both eyes to judge the relative positions of objects accurately
Human eye is a refracting system containing a diverging lens
Tendons through which muscles are connected to bones are tightly compacted bundles of which one of the following long fibrous protein?
Fibrin
Collagen
Elastin
Cellulose
Collagen
Which one of the following is the scientific name of the causal organism of elephantiasis?
Ascaris lumbricoides
Culex pipiens
Wuchereria bancrofti
Fasciola hepatica
Wuchereria bancrofti
Melanin is the natural pigment that gives colour to human skin, hair and the iris. It provides protection against
Ultraviolet radiation
Infrared radiation
X-ray radiation
Short wave radio radiation
Ultraviolet radiation
Which one of the following vitamins has a role in blood clotting?
Vitamin A
Vitamin D
Vitamin E
Vitamin K
Vitamin K