STD 11 - 4. Animal kingdom — BIOLOGY STD 11 Science — Question

List $I$                                List $II$

$a$.Lysosome                    $1$.Bacteria without cell walls

$b$.Mycoplasma                $2$.A virus that infects bacterial cells

$c$.Thylakoid                     $3$.Flattened sacs in a chloroplast

$d$.Bacteriophage             $4$.A vesicle in which hydrolytic enzymes are stored

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$(i)$ All living organisms have ability to respond the environment stimuli which could be physical, chemical or biological.

$(ii)$ Plants respond to external factors like light, water, temperature, other organisms, pollutants, etc.

$(iii)$ Photoperiod affects the process of reproduction.

$(iv)$ Human being is the only organism who has self consciousness.