Biomagnification - Study guides, Class notes & Summaries

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...

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 ...

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...

Action threshold the pest level at which some type of pest management action must be taken Bioaccumulation The accumulation of toxic substances, such as pesticides, or other organic chemicals in an organism Biomagnification The tendency for certain pesticides to progressively become more concentrated in each type of organism when moving from the bottom to the top organism within a food chain Contact pesticide Pesticide that is not absorbed systemically by treated plants or animals. These...

Utah Pesticide Applicator Exam – 2024 Already Graded A Term Definition Biomagnification some organisms accumulate chemical residues in higher concentrations than those found in the organisms they consume Food chain sequence of amimals feeding in a natural environment Non-living agents some plants are damaged by weather extremes, salts, air polutants, and inadequate or excessive fertilization Pest host animal or plant on which the organism lives Natural controls measures ...

ENWC 201 Final All Quiz Questions and Answers Rated A+ ___________ are used to enforce our ethics and in theory should match the ethics of the community. Laws 3 characteristics of k species long lived large in size extensive parent care A ____________ is the living part of an ecosystem. community A female Belding's ground squirrel makes more alert calls to predator intrusions when she is surrounded by individuals of her own species than when she is alone. This is a form of __...

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...

Pest Control Exam Questions and Answers 100% Pass Pest - Correct Answer ️️ -an undesirable organism that injures humans, desirable plants and animals, manufactured products, or natural substances. pathogens - Correct Answer ️️ -disease-causing organisms, such as viruses, bacteria, or fungi Pesticide resistance - Correct Answer ️️ -When pests adapt and become resistant to a pesticide. First seen in resistance to DDT in 1947 bioaccumulation - Correct Answer ️️ -The accumu...