Based on the diagram, oxygen flows through the circulatory system in which order?

a. 2, 1, 3

b. 5, 3, 1

c. 3, 2, 4

d. 1, 2, 4

How does natural selection change the frequency of genes or traits over many generations? Biology students conducted an experiment mimicking genetic variation and coloration.

When might asexual reproduction be important for the survival of some flowering plants?

Dwayne is making a cladogram using a diagonal line. Where should he place the least primitive organism?

The study of biology is important because it focuses on A. The animals of the earth B. The development of human forms C. The interactions of all living things D. The functions of the human body

What property of and object can you determine using mass and volume

In a population of deer mice, the allele for white hair is recessive and the allele for brown hair is dominant.

What makes a molecule a saturated fat?

Muscles or nerves or hormones control (s) the functioning of organs

How are Australia's fires relevant to today's vocabulary word "Succession"?

Water moves between the ocean, atmosphere, and land. In which form does water enter the atmosphere?