Arthropod classes typified according to presence of antennae
How three main arthropod classes typified according to presence of antennae?
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Crustaceans encompass two pairs of antennae; insects encompass one pair; arachnids don’t have antennae.
Explain, how are process of the inhalation and expiration is carried out?
In addition to vertebrates two invertebrate phyla include species which make pulmonary respiration. Which are such phyla?
How do calcium ions contribute in the muscle contraction? Why do both muscle relaxation and muscle contraction spend energy?
compare the digestion in protozoa and sponges
Is the base applied whenever we make grooves and locks for the amalgam retention?
How is the intensity of simple diffusion differing in relation to the concentration gradient of the moving substance?
In eukaryotic cells where does mRNA synthesis take place? To where do such molecules migrate?
Give a brief explanation of NAD.
Briefly define the term reflex arc?
What numeric pyramids represent?
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