Which of the following structures are accessory structures of the digestive system?

mouth and stomach

esophagus and rectum

pancreas and liver

pharynx and gall bladder

Which of the following types of RNA codes for a protein? dsRNA mRNA rRNA tRNA

List causes of changes in skin temperature

What are the body's 2 defense systems for foreign materials

Are animo acids polar, non-polar, both, or does it vary from amino acid to amino acid?

How is mechanical energy different from thermal energy? * A: mechanical energy includes kinetic and potential energy, and thermal energy includes only kinetic energy B:mechanical energy includes kinetic energy only, and thermal energy includes

Many caves are formed by what kind of weathering

Why do your fingers leave prints when you touch something

Aluminum (Al) has an atomic number of 13 and an atomic mass of 27. Which of the following correctly shows the electron arrangement for aluminum? 1. 2, 11 2. 2, 8, 1 3. 2, 8, 3 4. 2, 8, 17

Why do homologous organs suggest relationships among organisms

DNA was discovered in: 1953 1962 1968 other