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what is peristaltic movement?
what would happen is there was no nitrogen in the atmosphere.
describe double circulation in human beings. why it is necessary?
explain activity 6.1, 6.2 and 6.3
what are the functions of stomata? state 3 points.
why is small intestine in herbivores longer than in carnivores?
Leaves of healthy potted plant were coated with vaseline to block the stomata will this plant remain healthy for long state three reasons for your answer.
List the structures below in the order in which air passes as it travels from the nose to the lungs and draw a diagram of the respiratory system and label the parts.
Alveoli, bronchi, bronchioles, pharynx, nasal cavity, trachea, nostril
EXPLAIN THE PARASITIC MODE OF NUTRITION WITH 2 EXAMPLES.
Why do leaves appear green?
name three glands associated with the digestive system. also name their secretion
what is the process in which water is split during photosynthesis
How does photosynthesis occur in desert plants ?
Why do earthworms have moist skin?
what is the difference between saprophytic and parasitic nutrition?
Please explain me this?
in short explain the alimentary canal(digestive system) in human biengs
give two advantages of blood clotting
transpiration is a necessary evil. justify the statement.
Why are chloroplasts absent in epidermal cells?
How is the small intestine designed to absorb digested food?
why are lungs pink in colour
why do we boil the leaf in alcohol when we are testing it for starch
name the protein digesting enzyme,which acts in an
What is the definition of Symbiotic mode of nutrition?
What is the difference between cells and corpuscles?
What is the significance of emulsification of fats??????
What is the difference between Pepsin and Trypsin.? 5 points please!
Name the respiratory pigment present in humans and state its funtion.
Why do guard cells have chloroplast?
what are stomata? draw a labelled diagram of stomata & write two function of stomata.
stomata of desert plants remain closed during day time . how do they take up CO2 and perform photosynthesis?
what is the diffrenece between aerobic and anaerobic respiration?
Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds
draw the flowchart of machenism of respiration?
write an experiment to show that sunlight is necessary for photosynthesis.
In which form excess of glucose stored in plants and animals and where it is stored?
a. explain the process of nutrition in amoeba with a diagram
B. how does paramecium obtain its food?
what happens if the oxygenated and deoxygenated blood gets mixed?
How is oxygen and carbon dioxide transported in human beings?
explain human digestive system ?
Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?
difference between blood and lymph
A. Draw a diagram to show open stomatal pore and label on it:
1. Guard cells
B. state two functions of stomata.
C. how do guard cells regulate the opening and closing of stomatal pore?
write the difference between single and double circulation?why is double circulation is necessary in human beings?
The leaves of a plant first prepare food A by photosynthesis.Food A then gets converted into food B. What are food A and B?
what is the function of liver in human body?
Explain the digestion of food in human alimentary canal
why in the monocot plants stomata present on both surfaces but indicot plants the stomata are present on the lower surface only? Plz explain!!
with the help of an experiment prove that chlorophyll is necessary for photosynthesis?
what is the rate of breathing in human beings under normal conditions?
how are Alveoli designed to maximize the exchange of gases ?
is nephron is a single cell or it is multicellular?
explain the mechanism of photosynthesis?
describe the mechanism of breathing in human beings....
what is the mode of nutrition in most bacteria and fungi ? GIVE REASONS
How do the guard cells regulate opening and closing of stomatal pores? Explain with the help on diagram.
Name two phases of metabolism
how are lungs designed in human beings to maximise the area for exchange of gases?
list three features of alveoli.
what is holozoic mode of nutrition ?
Q24. Why do fish open and close the mouth and operculum during respiration?
the structure and functioning of nephrons.
All plants give out oxygen during day and carbon dioxide duringnight”. Do you agree with this statement? Give reason.
Why should the alcohol not be heated directly ?
explain the structure and function of the heart?
difference between photosynthesis and respiration?
draw flowchart to show the machenism of human respritary system....???PLEASE HURRY I WANT THIS ANSWER TODAY........PLEASEdraw flowchart to show the machenism of human respritary system....???PLEASE HURRY I WANT THIS ANSWER TODAY........PLEASE
Q: Give 4 points of difference between breathing and respiration?
what is a difference between saprophytic and saprozoic mode of nutrition?
why blood is called connective tissue?
two examples of endoparasites and exoparasites
what are the final products of carbohydrates, proteins and fats after their digestion.
What is the importance of Excretion and Osmoregulation ?
what happens when all green plants disappear from earth?
the dialyzing fluid has the same osmotic pressure as the
what are events occur during photosynthesis?
10 differences between unicellular and multicellular organisms
what is the site of implantation and development of young one in human female?
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