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Environmental Health and Biological Science

Health Education

Advanced facts regarding the intersection of public health, toxicology, and environmental biology.

biology toxicology zoology environment

10 Questions Hard Ages 16+ Jul 29, 2026

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About this Study Set

This study set covers Health Education through 10 practice questions. Advanced facts regarding the intersection of public health, toxicology, and environmental biology. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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1 Which specific substance found in the skin of the Golden Poison Frog (Phyllobates terribilis) is a potent sodium channel blocker that causes rapid cardiac failure in humans?

A Batrachotoxin
B Tetrodotoxin
C Bufotoxin
D Aflatoxin

2 What is the primary mode of transmission for the Hantavirus pulmonary syndrome, which is typically contracted from the excreta of the deer mouse (Peromyscus maniculatus)?

A Vector-borne via tick bites
B Inhalation of aerosolized viral particles
C Consumption of contaminated water
D Direct transmission via insect sting

3 Which environmental heavy metal, often biomagnified in apex predator fish like swordfish, is a known neurotoxin that causes Minamata disease?

A Lead
B Cadmium
C Arsenic
D Methylmercury

4 The causative agent of Lyme disease, Borrelia burgdorferi, is primarily transmitted to humans through the bite of which genus of tick?

A Dermacentor
B Ixodes
C Amblyomma
D Rhipicephalus

5 Which organ in the human body is primarily responsible for the metabolic transformation of polycyclic aromatic hydrocarbons (PAHs) found in polluted air and charcoal-grilled foods?

A Spleen
B Liver
C Pancreas
D Gallbladder

6 In environmental medicine, what effect does the bioaccumulation of organochlorine pesticides (like DDT) have on the shells of predatory birds?

A Increased pigmentation
B Enhanced thickness
C Eggshell thinning
D Accelerated hatching

7 Which common environmental fungal pathogen, found in bird and bat droppings, is responsible for the respiratory disease known as histoplasmosis?

A Histoplasma capsulatum
B Aspergillus fumigatus
C Candida albicans
D Cryptococcus neoformans

8 What is the clinical significance of the neurotoxin domoic acid, produced by certain marine diatoms (Pseudo-nitzschia) and accumulated in shellfish?

A Amnesic shellfish poisoning
B Paralytic shellfish poisoning
C Diarrhetic shellfish poisoning
D Ciguatera fish poisoning

9 Which specific botanical toxin is found in the castor bean (Ricinus communis) and functions by inhibiting protein synthesis via ribosomal inactivation?

A Muscarine
B Ricin
C Strychnine
D Aconitine

10 Exposure to high levels of environmental fluoride during enamel formation leads to which irreversible condition?

A Dentinogenesis imperfecta
B Dental fluorosis
C Periodontitis
D Enamel hypoplasia

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