your body is made up of over 30 trillion cells. but you didnt start out that way. all humans begin as a…

your body is made up of over 30 trillion cells. but you didnt start out that way. all humans begin as a single cell! that first cell grows and divides to form more cells. a human begins as a single fertilized egg cell known as a zygote. a teenage human is made of trillions of cells. as the human body grows and develops, cells become specialized to do different jobs. these different types of cells are the building blocks of the organ systems that keep us alive. complete the paragraph. humans start out as. as humans develop, they cells. cells specialize to perform jobs in the body.

your body is made up of over 30 trillion cells. but you didnt start out that way. all humans begin as a single cell! that first cell grows and divides to form more cells. a human begins as a single fertilized egg cell known as a zygote. a teenage human is made of trillions of cells. as the human body grows and develops, cells become specialized to do different jobs. these different types of cells are the building blocks of the organ systems that keep us alive. complete the paragraph. humans start out as. as humans develop, they cells. cells specialize to perform jobs in the body.

Answer

Brief Explanations:

The text states that humans begin as a single - celled zygote (a fertilized egg). As they develop, the number of cells increases and cells become specialized for different functions.

Answer:

  1. a single fertilized egg (zygote)
  2. have more
  3. different