Question

1.2.3 forensic toxicology

1. what is the role of a forensic toxicologist?
2. what is the purpose of the digestive system?

Explanation:

For question 12 (role of forensic toxicologist): Forensic toxicologists analyze biological samples (like blood, urine) to detect and identify drugs, poisons, or toxins. They determine the presence, concentration, and effects of these substances, often for legal or investigative purposes (e.g., in criminal cases, post - mortems, or workplace drug testing). Their work helps establish if a substance contributed to an injury, illness, or death, and provides scientific evidence for legal proceedings.
For question 13 (purpose of digestive system): The digestive system's main purpose is to break down food into nutrients (like carbohydrates, proteins, fats) that the body can absorb and use for energy, growth, and cell repair. It also eliminates waste products (undigested food, toxins) from the body. This process involves mechanical digestion (chewing, churning in the stomach) and chemical digestion (enzymes breaking down molecules), followed by absorption in the small intestine and waste removal via the large intestine.

Answer:

1. A forensic toxicologist analyzes biological samples to detect/identify toxins/drugs, determine their effects/concentrations, and provide scientific evidence for legal/investigative purposes (e.g., in criminal cases or post - mortems).
2. The digestive system breaks down food into absorbable nutrients for energy/growth/repair and eliminates waste.