Scientists conduct experiments to collect evidence. Which of the following is the best definition of the word experiment as used by scientists?
A.
the formation of a hypothesis
B.
making a series of observations
C.
a structured test of a hypothesis
D.
a chance to try something new

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.

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what

Which of th following is needed for cellular respiration to occur