Biomagnification - Study guides, Class notes & Summaries

PA Pesticide Applicator Core + Chapter 16 Exam With 100% Complete Solutions Malaria - ANSWER- parasitic microorganism (protozoan) Pest - ANSWER- an undesirable organism that injures humans, desirable plants and animals, manufactured products, or natural substances Pathogens - ANSWER- disease causing organisms, such as viruses, bacteria, or fungi weeds, mollusks, fish, birds, and a variety of mammals compete for our crops and livestock earliest chemical pesticides - ANSWER- 2500 B...

6 components of soil - -sand and gravel -silts and clays -dead organic material -soil fauna and flora -water -air A horizon (surface soil) - Mineral particles mixed with organic material. Food comes from the A horizon. A pattern of falling death and birth rates due to improved living conditions including education for women and access to birth control methods? - demographic transition Acute Effects - caused by a single exposure and results in an immediate health problem Additive React...

Pest Control Exam Questions and Answers Rated A+ Pest an undesirable organism that injures humans, desirable plants and animals, manufactured products, or natural substances. pathogens disease-causing organisms, such as viruses, bacteria, or fungi Pesticide resistance When pests adapt and become resistant to a pesticide. First seen in resistance to DDT in 1947 bioaccumulation The accumulation of pesticide in the fatty tissue of some animals biomagnification The Food chain. Organisms with pes...

Bioaccumulation - ANSWER The accumulation of a substance, such as a toxic chemical, in various tissues of a living organism. Biomagnification - ANSWER Accumulation of pollutants at successive levels of the food chain abiotic factors - ANSWER natural control measures within the environment. EX: climactic factors, air/water pollution, topographic features. Biological Control - ANSWER The use of natural enemies to control pests. EX: Predators, Parasites, Pathogens Cultural Control - A...

how long have homo-sapiens been on earth Correct Answer: thought to be 200,000 years, starting in ethiopia mutation Correct Answer: change in nucleotide in the base of DNA; not all harmful; passed down in generations of that descent when did humans establish themselves worldwide Correct Answer: 12,000 years ago; before humans and agriculture coincided how did humans live before agriculture Correct Answer: used tools (needles, spears, clothes) and lived in small groups spread out of la...

ENWC 201 Final Exam Questions 2024 Marking Scheme what are wildlife diseases connected to? - Answer -1. conservation of threatened and endangered species 2. recreational use of wildlife 3. public health/loss of life 4. agriculture (livestock) disease - Answer --a disturbance to the normal function of structure of an organism epizootic - Answer --a disease that appears at an unexpected rate, synonymous with epidemic in humans -ex: white-nose syndrome in bats; causes them to wake up i...

How have humans influenced the water cycle? - ️️Hydroelectric dams, tapping aquifers, deforestation Estuaries, losing evapotranspiration What are the 4 main human caused factors to the loss of biodiversity? - ️️Habitat Destruction, Invasive Species, Pollution, Overexploitation What is Biomagnification? - ️️Tendency of certain chemicals to accumulate or build up within food chains What is the other name for the global water cycle? - ️️Hydrological cycle Where does most of ...

PA Pesticide Applicator Exam Core Info Latest Update Graded A+ Bioaccumulation The accumulation of a substance, such as a toxic chemical, in various tissues of a living organism. Biomagnification Accumulation of pollutants at successive levels of the food chain abiotic factors natural control measures within the environment. EX: climactic factors, air/water pollution, topographic features. Biological Control The use of natural enemies to control pests. EX: Predators, Parasite...

Pest Control Core Test Questions with Correct Answers All insects are pests: True or False? - Answer-False One of the earliest uses of chemicals as pesticides was the burning of sulfur: True or False? - Answer-True One the major concerns surrounding the use of pesticides is the development of resistance: True or False? - Answer-True What is the process in which organisms in a food chain accumulate progressively greater residues of pesticides in their bodies? - Answer-biomagnification ...

Pest - ANSWER-an undesirable organism that injures humans, desirable plants and animals, manufactured products, or natural substances. pathogens - ANSWER-disease-causing organisms, such as viruses, bacteria, or fungi Pesticide resistance - ANSWER-When pests adapt and become resistant to a pesticide. First seen in resistance to DDT in 1947 bioaccumulation - ANSWER-The accumulation of pesticide in the fatty tissue of some animals biomagnification - ANSWER-The Food chain. Organ...