Q. 44.2( 223 Votes )
What processes would you consider essential for maintaining life?
If any organism needs to stay alive, there are few processes that are absolutely important to occur.
These processes are:
2.Respiration:- An organism needs to breathe and respire. Through respiration, organisms acquire oxygen from the environment and use it for the breakdown food sources and release energy which they use to carry out metabolic processes.
3.Transportation:- Transportation or circulation is also important for an organism to live. It helps in carrying oxygen and nutrients throughout the body.
4.Excretion:- An organisms body produces waste products that are harmful for the body and hence need to be removed. So excretion takes place to make sure thatthe body gets rid of these harmful and toxic contents.
5. Control and coordination:- Control and coordination needed to make sure that the entire body functions well. The various processes occuring inside any organism's body are interlinked or dependant on each other or connected to each other. So if there is no control and coordination among them, the entire system can breakdown.
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Leaves of a healthy potted plant were coated with Vaseline to block the stomata. Will this plant remain healthy for long? State three reasons for your answer.
i. Why do fishes die when taken out of water?
ii. Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?Xam idea - Science
There are four organisms A, B, C and D. The organism A eats only the flesh of other animals as food. The organism B can eat grains, fruits and vegetables as well as meat and fish. The organism C can make the food itself from simple inorganic substances present in the environment by utilising sunlight energy. On the other hand, organism D eats only plants and their products as food.
(a) Which organism is (i) omnivore
(ii) herbivore, and (iii) carnivore ?
(b) Which organism is an autotroph ?
(c) Which organism is/are heterotroph(s)?
(d) Which organism can be a producer ?
(e) Which organism is/are consumer (s)?
(f) Give one example each of organisms which could be like (i) A (ii) B (iii) C, and (iv) DLakhmir Singh & Manjit Kaur- Biology
Which of the following is an incorrect statement?Evergreen Science
The opening and closing of the stomatal pore depends upon:Evergreen Science
While doing the experiment to show light is necessary for photosynthesis; the student was given following suggestions by his fellow students. Which are the correct suggestions given by his fellow students?
i) Safranin should be used instead of iodine.
ii) The leaf should be boiled in alcohol with water bath to remove chlorophyll.
iii) Transparent paper strip should be used instead of black paper strip.
iv) The plant should be destarched before starting the experiment.Xam idea - Science