What is a cell?
Another name for adenosine triphosphate is _________.
In a(n) _________ environment, the solute concentration is equal both inside and outside the cell.
What is isotonic?
The simplest organisms are _________.
What is bacteria?
A(n) _________ is made up of different organs that work together to perform specific connected tasks.
What is an organ system?
A(n) _________ is a chemical signal our body uses to direct some of its activities.
What is a hormone?
In a(n) _________ environment, the solute concentration is higher than elsewhere.
What is hypertonic?
Prokaryotes contain all of the following except _________.
What is a nucleus?
A tissue is a group of _________ with similar structures that work together to do a common function.
What are cells?
An instrument used to magnify an object is called a(n) _________.
What is a microscope?
In a(n) _________ environment, the solute concentration is lower than elsewhere.
Cells found in _________ have many organelles that produce energy.
What are muscles?
The heart is an example of a(n) _________.
What is an organ?
A cell's main fuel source is _________.
What is ATP?
A cell maintains a biological balance known as _________.
What is homeostasis?
Prokaryotes reproduce by a process called _________.
What is binary fission?
Messages are carried to and from the brain by _________ cells.
What are nerve (cells)?