Schleiden and Schwann determined which of the following statements regarding the cell theory?
A. All cells come from existing cells.
B. All cells are microscopic in size.
C. The cell was discovered by Anton van Leeuwenhoek.
D. The cell is the basic unit of life in all living things.

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

In 2001, records showed that local stocks of fish were down worldwide. yet, records of harvests indicated that fish were being taken at records rates. what was actually happening?