*Question*
You are presented with the question "What is a chemical element that is essential for body processes?" and the following answer choices: - Energy. - water - blood - Energy - sodium - copper - positive - ice Now knowing that minerals are chemical elements that are essential for body processes and copper is an essential mineral, choose the best answer.
**Answer**
copper

*Question*
You are presented with the question "Organisms that live in marine biomes must be adapted to what?" and the following answer choices: - Deposition - fish - waves - darkness - salinity - heat or cold - evaporation - Deposition. Now knowing that organisms that live in marine biomes must be adapted to the salt in the water and salinity is the measure of salts in the water, choose the best answer.
**Answer**
salinity

*Question*
You are presented with the question "what does electrocution cause harm to?" and the following answer choices: - cells - pain - amphibians - animals - Frogs - electrons - humans - water Now knowing that electrocution causes harm to an organism and plants and animals are organisms, choose the best answer.
**Answer**
animals

*Question*
You are presented with the question "What do cells have multiple repair mechanisms to repair?" and the following answer choices: - Veins and arteries. - damage to DNA - a cuticle - animals - mammals - peachleaf willow - gastropod shells - an organism's body Now knowing that cells have multiple repair mechanisms to fix mutations in DNA and dNA damage is called mutation, choose the best answer.
**Answer**
damage to DNA