Organization and Development of Living Organisms
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All plants and animals, including humans, are alike in some ways and different in others.
All plants and animals, including humans, have internal parts and external structures that function to keep them alive and help them grow and reproduce.
Humans can better understand the natural world through careful observation.
Describe structures in plants and their roles in food production, support, water and nutrient transport, and reproduction.
Investigate and describe how plants respond to stimuli (heat, light, gravity), such as the way plant stems grow toward light and their roots grow downward in response to gravity.