*Question*
Antigens are molecules that the immune system recognizes as foreign to the body, and another such HPV antigen is the E6 antigen. Given these facts, what is recognized as foreign to the body by the immune system among the following options: - h2o - HIV - SNPs - blood - organs - p53 - DDT - HPV
**Answer**
HPV

*Question*
Atoaster converts electrical energy into heat energy for toasting, and heat and temperature are the same thing. Given these facts, what converts electrical energy to increased temperature among the following options: - toaster - Cars - vehicles - sweating - water bottle - friction - engines - light
**Answer**
toaster

*Question*
Evaporation of sweat uses energy, and the energy comes from body heat, and because food contains energy. Given these facts, what requires food among the following options: - Evaporation of sweat - hydration of their cells - Most plants - Microscopic organisms - agriculture - to stay alive - female sex cells - plant life
**Answer**
Evaporation of sweat

*Question*
The looseness of soil has a positive impact on a plant 's roots' growth in that soil, and roots are the veins and arteries of the plant. Given these facts, the looseness of soil has a positive impact on what plant part and growth in that soil. among the following options: - Roundworms - Top soil. - Earthworms - Veins and arteries. - agriculture - peachleaf willow - Plant silk leaves. - Leaves fallen on the ground
**Answer**
Veins and arteries.