15. What are three methods or types of evidence used by scientists to determine when things happened?

How do humans impact the carbon cycle

Which of these organelles converts energy from food into a usable form: Mitochondria, Centrioles, Endoplasmic reticulum, or Chloroplasts?

Which process can move molecules from a lower concentration on one side of the membrane to a higher concentration solution on the other side?

Which best describes the relationship between blood flow and lymph flow? A. Blood flows through the contraction of skeletal muscle, and lymph flows through the contraction of cardiac muscle. B.

A gardener is digging up some of her strawberry plants. She thinks that strawberries reproduce via vegetative reproduction; however, she finds no evidence of horizontal stems connecting her strawberry plants.

which of the following statements best describes the major difference between prophase 1 of meiosis and prophase of mitosis

What is LUCA and how long ago did LUCA exist? What is the general interpretation of the observation that members of a single gene family are found in all three domains of life?

A bobcat feeding off of rabbits in the ecosystem is an example of commensalism competition mutualism parasitism predation

State the three basic premises of the modern cell theory

Mountains are usually formed by: movement of the earth's crust volcanic explosions placement of eroded land weathering away of land