Growth and aging

How do cells divide and how is growth controlled? How does the body change during puberty? What happens when we age and what are typical signs of aging?

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Popular in Growth and aging

  • How are genes passed on?

    When people talk about genes being passed on, they usually mean genetic information being passed on from parents to children. Genetic information is ...

  • How do most cells divide (mitosis)?

    Cells need to divide for your body to grow and for body tissue such as skin to continuously renew itself. The division of the nucleus is an important...

  • How are sex cells made (meiosis)?

    The formation of sex cells is a central part of reproduction: In fertilization, an egg cell and a sperm cell combine. These cells, also known as repr...

  • What happens when you age?

    When it comes to aging, certain questions may arise, such as: Why do our bodies age, and how old can people get? But growing older is about more than...