method of digestion in protozoans and sponges
compare the method of digestion between protozoans and sponges
Give a brief description of neurotransmitter of neuromuscular junction? How does nervous system trigger the muscle contraction?
Write the gas exchange unit of mammalian lungs? Answer: The gas exchange units of mammalian lungs are the alveoli.
Write down type of digestion which takes place in cnidarians?
Write down the action mechanism of antibiotic penicillin?
Name the general chemical equation of photosynthesis? Why doesn't that equation clearly illustrate the actual origin of the molecular oxygen released?
Explain the term coacervates?
Why vaccines are used within the prevention but not in the treatment of infections? And why can antivenom serums are utilized in treatment and prevention?
How three main arthropod classes typified according to presence of wings?
Briefly explain regarding the chemical nature of the molecule, that makes a substance antigenic.
Specify the elements which constitute the stomata?
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