Describe what a growth factor is and how it influences the cell

What type of specimens where you able to see under each of the microscopes in the microscope activity

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the