Biology Review 8/22/19 Crossword

The definition of "any living thing".
What is "the study of life"?
What are the basic units of life?
What are the basic units for passing traits from parents to offspring?
An abbreviation formed from the initial letters of other words and pronounced as a word.
Respiration in humans and animals is otherwise called what?
Having or consisting of many cells.
Consisting of a single cell.
Humans belong in this "kingdom".
A single-celled organism with only one organelle, a cell membrane.
A cell that contains a cell membrane, a nucleus, and other organelles.
An organism that can produce its own food from the substances available in their surroundings using light or chemical energy.
An organism that obtains energy by eating other organisms.
The theory that explains how life on Earth has diversified into millions of different species.
Any animal that lacks an internal backbone.