The fossil record indicates that the first organisms to appear on earth was

Time (seconds) Wavelength (nm) 0.1 2 0.2 2.5 0.3 3 0.4 3.5 0.5 4 0.6 4.5 The independent variable in the graph is A) nanometers. B) seconds. C) time. D) wavelength.

The roots of a plant: take in oxygen from the air soak up water and nutrients from the soil catch sunlight in special cells make sugar from carbon dioxide and water

If the finches that colonized the Galápagos from South America had different allele frequencies when compared to the parental population of South American finches, even before adapting to the new environmental condition on the Galápagos, this would

During what process is the desired particle surrounded by the cytoplasm of a cell and drawn inside of the cell? A. Pinocytosis B. Active Transport C. Phagocytosis

The following steps describe how sedimentary rock forms at the bottom of a river. Which two steps involve erosion? 1. A large rock breaks down into sediment. 2. The water transports and deposits the sediments. 3.

In angiosperms, flowers are adaptations for reproduction. Which of the following does NOT usually describe flowers that are pollinated by animals? A. They are tiny. B. They pollinate more efficiently than wind-pollinated plants. C.

Which statement correctly describes the process that occurs in the thylakoid? ATP is produced in the thylakoid during light-independent reactions. ATP is produced in the thylakoid during light-dependent reactions.

What body system peforms the function of getting rid of chemical waste

Natural selection is defined as A. the changes that occur in an organism over its lifespan. B. the changes in the characteristics within a population that lead to survival. C.

Is dna considered to be an organic molecule? Why or why not?