the smallest chemical unit of matter
What is an atom
The smallest unit of life in creation
What is cell
Pairs with Adenine
What is thymine
All life forms contain DNA
What is criterion of life #1
Metabolism produces energy, carbon dioxide, and ____
What is water
Two or more atoms linked together to make a substance with unique properties
What is a molecule
Special structures that allow living organisms to sense the condition of their internal or external environment
What is receptors
Pairs with guanine
What is cytosine
All life forms reproduce
What is criterion of life #4
Photosynthesis produces these two things
What is glucose and oxygen
The sum total of all processes in an organism that convert energy and matter from outside sources and use that energy and matter to sustain the organism's life functions
What is metabolism
The process by which green plants and some other organisms use the energy of sunlight and simple chemicals to produce their own food
What is photosynthesis
The double helix of two long strands of atoms linked together in just the right way.
What is backbone of DNA
All life forms can sense changes in their surrounding and respond to those changes
What is criterion of life #2
Even if a human never has a child, they still reproduce.
What is cellular reproduction
Stores almost all of the cells DNA
What is nuclues
Allows what can come in and what can go out
What is membrane
The backbone of DNA has little units attached to it.....guanine, cytosine, adenine, and thymine
What is nucleotide bases
All life forms extract energy from the surroundings and covert it into energy that sustains them
What is criterion of life #3
If a certain organism produces lots of offspring, you can conclude that the level of danger for the organism would be
What is dangerous