Aplant requires sunlight for photosynthesis, and sunlight is composed of photons, or particles of solar energy. Given these facts, a plant requires _ for photosynthesis among the following options: - proteins  - photons  - Light  - sun's heat  - nutrients  - mitochondria  - sugar  - plasma
photons

Coal is used for generating heat by burning, and coal forms from dead plants, compacted. Given these facts, what can generate heat among the following options: - time  - siren  - electricity  - Ice cube  - Dead plants  - Fuel cells  - kinetic energy  - Nematoda
Dead plants

Q: Heterotrophs are living things that cannot make their own food, and all animals are heterotrophic. Given these facts, what cannot make their own food among the following options: - parasites  - animals  - producers  - fungi  - bacteria  - phytoplankton  - plants  - humans
A: animals

Question: Antigens are molecules that the immune system recognizes as foreign to the body, and immunology is the study of the immune system. Given these facts, what is one thing studied in immunology among the following options: - illness  - antigens  - humanism  - health  - philosophy  - resistance  - symbology  - fever
Answer: antigens

*Question*
When the body is hot , sweat is produced to cool the body, and exercise, fever, and heat cause the body's temperature to rise. Given these facts, what causes sweat to be produced to cool a person down among the following options: - exercise and fever  - wool pants  - the sun  - Movement of an air mass  - shooting stars  - Evaporation  - centralized nervous system  - water vapor
**Answer**
exercise and fever

(Question)
Astove is used for cooking by generating heat, and wood stoves for cooking and heating. Given these facts, what can wood be used for among the following options: - fuel  - cooling  - energy  - preserving  - food  - trees  - icing  - cooking
(Answer)

cooking