Explain occurrence of menses in hormonal
Explain occurrence of menses in hormonal.
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Menses is the endometrial periodically desquamation which occurs when estrogen and progesterone levels drop after the regression of the corpus luteum since these hormones, mostly progesterone, can no longer hold up and maintain thickening of endometrium.
Write down the differentiation between endocrine gland and exocrine gland?
Explain three types of germ layers which form tissues in addition of organs in animals?
The stage of meiosis where cells become haploid
Is reproduction in sponges asexual or sexual?
Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?
Name the positions of actin and myosin molecules in sarcomere before and throughout the muscle contraction?
Write down a short note on the dissimilarity between phloem and xylem.
Do amphibians have direct growth? Answer: In amphibians, the embryonic growth is indirect (there is a larval phase).
Explain why in inflammatory and infectious conditions can the clinical signs regarding to the lymphatic system may occur?
What are vocal cords?
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