Answer:
he hypothalamus and pituitary gland, which are in the brain, initiate puberty. The hypothalamus secretes luteinizing hormone-releasing hormone, which stimulates the pituitary to secrete luteinizing hormone and follicle-stimulating hormone. Luteinizing hormone causes the testes to produce testosterone. Follicle-stimulating hormone (plus testosterone) causes the testes to produce sperm. Testosterone is responsible for the development of secondary sex characteristics, features that stimulate male development (including characteristics that are not part of the reproductive system, such as facial hair growth and voice change).
Explanation:
Answer:
Diffusion
Explanation:
The movement of molecules and ions from a region of higher concentration gradient to the region of lower concentration gradient of the molecules. Its direction of movements depends totally on the direction of the concentration gradients.
Fick's Law is the principal law that underscores diffusion. And it sates that the rate of diffusion is directly proportional to the concentration gradients or differences; the surface area available for the molecules to pass through ;<u> but inversely proportional to the thickness of the separating membrane (diffusion distance. </u>
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Thus the larger the surface area exposed the more molecules pass through into the membrane , the higher the concentration differences the greater the number of molecules willing to break free and escape; but the thicker the separating membranes, the slower the number of molecules getting chances to pass through and the lower the rate of diffusion.
Answer:
c) classical condiotining
Explanation:
Classical conditioning (or Pavlovian conditioning or responsive conditioning), also known as punishment and reward or behaviorism, is a process that describes the genesis and modification of some behaviors based on the effects of the stimulus-response binomial on the central nervous system of living things.
Mike associate the action of eating shrimp as a bad thing, since years before he had a bad experience with the action.
Answer:
Esquistossomose
Explicação:
Pessoas que andam descalças infectadas com uma doença chamada Esquistossomose que as tornam fracas e anêmicas. Essa doença ocorre devido ao contato físico das pessoas com a água doce contaminada em que o parasita está presente. Quando as pessoas que andam descalças entram em contato com água doce contaminada assim o parasita penetra em sua pele e causa a doença da Esquistossomose.
