MICROBIO 4000 EXAM 4 100% APPROVED ANSWERS STUDY SET

ACVPM PRACTICE TEST
QUESTIONS WITH 100%
APPROVED SOLUTIONS
2026/2027 STUDY SET
WHICH OF THE FOLLOWING IS NOT TRUE REGARDING HARMFUL ALGAL BLOOM (HAB)
TOXINS?
A. CAN CAUSE DISEASE IN NANOGRAM TO PICOGRAM DOSES.
B. HAVE DISTINCT ODOR/TASTE THAT DETERS PEOPLE AND ANIMALS.
C. ARE HIGHLY RESISTANT TO HEAT, ACID AND FREEZING.
D. CAN PASS THROUGH THE BLOOD-BRAIN BARRIER.
E. CAN ACT AS TUMOR PROMOTERS.

B. HAVE DISTINCT ODOR/TASTE THAT DETERS PEOPLE AND ANIMALS.

TRUE OR FALSE: EVIDENCE SUGGESTS THAT HARMFUL ALGAL BLOOMS (HABS) OCCURRING IN
AREAS WHERE THEY WERE PREVIOUSLY UNDOCUMENTED BECAUSE PEOPLE HAVE
INADVERTENTLY INTRODUCED ORGANISMS INTO NEW AREAS THROUGH SHIPPING
MOVEMENTS OR THE TRANSPORT OF LIVING MARINE ORGANISMS.

TRUE:

WHICH OF THE FOLLOWING CAUSES HISTAMINE POISONING AS A RESULT OF CONSUMING
IMPROPERLY HANDLED DARK-MEAT FISH SUCH AS TUNA OR MACKEREL?
A. SCROMBROID
B. CIGUATERA
C. DOMOIC ACID

,D. TETRODOTOXIN
E. MICROCYSTINS

A. SCROMBROID

WHAT TICK IS GENERALLY ASSOCIATED WITH DEVELOPMENT OF ALPHA-GAL SYNDROME?
A. BLACK-LEGGED TICK - IXODES SCAPULARIS
B. AMERICAN DOG TICK - DERMACENTOR VARIABILIS
C. LONE STAR TICK - AMBLYOMMA AMERICANUM
D. BROWN DOG TICK - RHIPICEPHALUS SANGUINEUS
E. ROCKY MOUNTAIN WOOD TICK - DERMACENTOR ANDERSONI

C. LONE STAR TICK - AMBLYOMMA AMERICANUM

WHICH OF THESE WASTE CHARACTERISTICS IS NOT CONSIDERED HAZARDOUS BY RCRA?
A. IGNITABLE
B. CORROSIVE
C. REACTIVE
D. ACERBIC

D. ACERBIC

WHAT TYPE OF WASTE DOES SUBTITLE D OF RCRA SPECIFICALLY REGULATE?
A. SOLID HAZARDOUS WASTE
B. CHEMICAL HAZARDOUS WASTE
C. NON-HAZARDOUS SOLID WASTE
D. RADIOACTIVE WASTE

C. NON-HAZARDOUS SOLID WASTE

WHICH OF THE FOLLOWING METHODS, ACCORDING TO THE EPA, IS USED APPROXIMATELY
90% OF THE TIME FOR THE DISPOSAL AND/OR DESTRUCTION OF INFECTIOUS CHEMICAL OR
MEDICAL WASTE?

,A. MICROWAVING THE WASTE.
B. SENDING THE WASTE OFF TO AN AUTOCLAVING COMPANY THAT IS LICENSED TO DO THIS
TYPE OF DISPOSAL.
C. PLACING THE WASTE IN A MEDICAL "RED BAG", SEALING IT AIR-TIGHT, AND THEN
THROWING IT AWAY IN ANY HOSPITAL DUMPSTER.
D. INCINERATION BY A TREATMENT, STORAGE, AND DISPOSAL FACILITY (TSDF).

D. INCINERATION BY A TREATMENT, STORAGE, AND DISPOSAL FACILITY (TSDF).

WHICH TOXIN IS FOUND IN THE NORTHEAST AND NORTHWEST USA WITH HUMAN SIGNS OF
MUSCLE WEAKNESS, FLOATING SENSATION AND ATAXIA?
A. BREVETOXIN
B. DOMOIC ACID
C. OKADAIC ACID
D. SAXITOXIN
E. CIGUATOXIN

D. SAXITOXIN

WHAT NUMBER OF MATURE DAIRY COWS CONFINED ON AN ANIMAL FEED OPERATION FOR
MORE THAN 45 DAYS CONSTITUTES A CAFO?
A. 1000
B. 500
C. 300
D. 700
E. 1500

D. 700

WHICH ONE OF THE FOLLOWING ELEMENTS, USED AS A FUNGICIDE, MAY BE TOXIC TO SWINE
AND TO HUMANS EATING PORK FROM SWINE THAT HAVE INGESTED THE ELEMENT?
A. MERCURY.

, B. IRON.
C. COPPER.
D. MOLYBDENUM.
E. COBALT

A. MERCURY

IN THE DESIGN AND OPERATION OF A PLANT UTILIZING RADIATION FOR THE PRESERVATION
OF FOOD, CONCERN MUST BE GIVEN TO THE PROTECTION OF OPERATORS BECAUSE THE:
A. ALPHA RADIATION USED REPRESENTS A POTENTIAL SOURCE OF SKIN CANCER.
B. INTENSITY OF THE RADIATION SOURCE USED IS EXTREMELY HIGH.
C. PRESERVING AGENT, A RADIOACTIVE POWDER, MUST BE DUSTED ON THE FOOD AND THUS
CONSTITUTES A POTENTIAL INTERNAL HAZARD.
D. NEUTRON SOURCE USED MAKES SHIELDING DIFFICULT.
E. FOOD AFTER IRRADIATION IS ITSELF RADIOACTIVE FOR A WHILE AND MUST BE HANDLED
CAREFULLY.

B. INTENSITY OF THE RADIATION SOURCE USED IS EXTREMELY HIGH.
SIDE NOTE: GAMMA RADIATION IS USED IN FOOD IRRADIATION

THE MOST FREQUENT CARCINOGENIC EFFECT OF HIGH LEVELS OF TOTAL BODY IRRADIATION
IS:
A. THYROID CARCINOMA.
B. LEUKEMIA.
C. BONE SARCOMA.
D. SKIN CARCINOMA.
E. GUM CARCINOMA

B. LEUKEMIA

THE REASON STRONTIUM-90 IS OF HEALTH CONCERN IS THAT IT CONCENTRATES IN THE:
A. REPRODUCTIVE SYSTEM AND PRODUCES DAMAGE TO FUTURE GENERATIONS.