Which of the following are types of biological evidence that can be used for dna testing? fingerprints saliva blood sweat clothing

Are salt and soap nutrients or toxins for yeast? explain.

Explain how scientists use geologic time to determine the age of landforms.

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body