Structures shared by each and every chordate
Describe the three structures shared by each and every chordate which characterize the group?
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Each and every beings of phylum Chordata contain branchial clefts in the pharynx (in certain species present merely in the embryo), notochord (replaced by the spinal column in vertebrates) and in dorsal neural tube.
What is a cross-reaction? Briefly state it.
From which germ layer do the epidermis and nervous system initiate? Name the other tissues and organs made from germ layer?
From which floral structure do fruits come?
Specify whether all mammals have placenta?
Explain that how does the hypophysis ovaries endocrine axis perform in the same means during pregnancy as in non-pregnant women? If pregnancy doesn’t occur how does another menstrual cycle start?
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Photosynthesis is the most significant producer of molecular oxygen (O2) on our earth. Name the molecule from which oxygen atoms discharged by photosynthesis come? From which other molecule could one suspect they have come? Write the destin
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Write down the differentiation between white and red blood cells? And also give a brief description of leukocytes?
What occurs to the TSH (or thyroid-stimulating hormone) blood level in the hypothyroidism? Why is there enlargement of thyroid in the endemic goiter disease?
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