Sperm cells and spermatids
State difference between the sperm cells and spermatids? Specify the name of transformation of spermatids into the sperm cells?
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Sperm cells (the male gametes) are said to be matured spermatids which have already undergone the differentiation (reduction of cytoplasm, appearance of flagellum, formation of acrosome, improve in number of mitochondria). This differentiation process is known as spermiogenesis.
Why the 2-A group elements are termed as Alkaline earth elements?
Leadership Development: This expands the capacity of individuals to execute in leadership roles within associations. Leadership roles are such that facilitate execution of a company’s strategy through: building alignment, winning mind-share and
Explain why uricotelic excretion necessary for avian and reptile embryos? Answer: In birds and reptiles the excretory system is uricotelic as uric acid is insoluble,
How does photosensitivity in the cnidarians, annelids and worms differ from cephalopods, insects, and the vertebrates?
Characteristics of a good policy To be effective, a policy must be formulated after carefully considering all aspects of the situation to which it is to be applied.
How does the nervous system acquire information regarding the external atmosphere, the tissues and organs?
Write down the main accessible vaccines against poliomyelitis?
State some of the constituent elements of blood?
Write down the difference between cross pollination and self pollination? Which of these two modes of pollination contributes more to the plant diversity?
Describe the two types of circulatory systems? Answer: The circulatory systems can be categorized into closed circulatory system and open circulatory system.
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