Organelles are found in... A. the blood stream of complex organisms.
B. inside most cells.
C. constantly moving between cells.

When ash and dust begin to settle on the ground, they eventually become compacted by

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled

What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root