Focusing on which two central themes in biology would help a student understand why animals come in different shapes and sizes?
a. cellular basis for life; homeostasis
b. structure and function; unity and diversity of life
c. matter and energy, homeostasis
d. science as a way of knowing; interdependence of nature

Select the star life cycle that is accurate

Si units are the modern form of the

Water changes bacteria in the soil converts this nutrient into a usable form. plants take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant. an animal eats the plants, and the nutrient becomes part of the animal. when the animal dies, it decomposes, returning the nutrient back to the soil. which cycle is being described? water cycle carbon cycle nitrogen cycle phosphorous cycle