Which is the best example of the concept of heredity? a. a black cat blends into its environment at night. b. a baby has his mother's hair and eye color. c. as a barnacle grows, it gets calcium for its shell from seawater. d. the sunflower will move so its flower head is always facing the sun.

Structures in cells that carry out specific functions.

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses