How can you determine if the igneous intrusion is older or younger than Layer C. Explain how you determined your answer.

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Explain the significance of the increased cell specialization of the volvocine line