Most studies of the reinforcing effects of stimulants have focused on the drugs’ capacity to induce positive mood (i.e., euphoria). However, recent findings suggest drugs may…
City of Ur. City of Uruk. City of Babylon. Tigris River. Euphrates River. Syrian Desert. Arabian Desert. Taurus Mountains. What important geographical features led to the…
A logical topology is how devices appear connected to the user. A physical topology is how they are actually interconnected with wires and cables. What is…
Definition. In biology, functions are attributed to the traits, behaviors, and parts of living things. A thing’s function can refer to its purpose, a benefit it confers on an organism, or the causal role it contributes to a more complex system capacity. What are examples of biological functions? Many of the parts and processes of…
The Schedule A regulations specify that a person must have an intellectual disability, a severe physical disability or a psychiatric disability to be eligible to be hired through Schedule A. The regulations do not specifically include or exclude particular disabilities under those three categories of disabilities. What is a severe physical disability? Severe physical disability…
Aquatic life- animals living in water use up dissolved oxygen. Elevation- the amount of oxygen in elevation increases. Salinity (saltiness)- Salty water holds less oxygen than fresh water. Temperature- cold water holds more dissolved oxygen than warm water. What are 3 factors that influence dissolved oxygen levels? The amount of oxygen that can be dissolved…
Motocross is a physically demanding sport requiring both strength and skill. Motocross riders need to ensure they are in peak physical condition to compete safely. Motocross riders are some of the fittest athletes in the world, although no study conclusively proves they are the fittest overall. What is the most physically demanding motorsport in the…
There are many subdisciplines within biomedical engineering, including the design and development of active and passive medical devices, orthopedic implants, medical imaging, biomedical signal processing, tissue and stem cell engineering, and clinical engineering, just to name a few. What branch of science is biomedical engineering? Biomedical Engineering (BME) is the branch of engineering that is…
Controlling time & temp, Practicing good hygiene, Preventing cross-contamination, Purchasing from approved suppliers, Cleaning & sanitizing properly. What is the best method from preventing a physical hazard in food from causing an injury? What is the best method from preventing a physical hazard in food from causing an injury? Purchasing from approved suppliers. How do…
Triacylglycerols, the most common lipid, comprise most body fat and are described as fats and oils in food. Excess energy from food is stored as adipose tissue in the body. What lipid types are component of biological membrane? The main membrane lipids are phospholipids, cholesterol, and glycolipids. Glycolipids seem to be cell antigens, and they,…
Historical biological weapons programmes have included efforts to produce: aflatoxin; anthrax; botulinum toxin; foot-and-mouth disease; glanders; plague; Q fever; rice blast; ricin; Rocky Mountain spotted fever; smallpox; and tularaemia, among others. Are biological weapons worse than nuclear weapons? This explains that biological weapons are much more dangerous than the nuclear weapons. Biological weapons have the…
Reception: A cell detects a signaling molecule from the outside of the cell. Transduction: When the signaling molecule binds the receptor it changes the receptor protein in some way. Response: Finally, the signal triggers a specific cellular response. What are the 3 stages of cell signaling and where each usually occurs? Three Stages of Cell…
Food safety reminder Remove all naturally occurring physical hazards, such as bones and pits, from food. Maintain equipment to avoid accidental physical hazards. How should food workers prevent physical food hazards from injuring customers quizlet? Controlling time & temp, Practicing good hygiene, Preventing cross-contamination, Purchasing from approved suppliers, Cleaning & sanitizing properly. How can you…
Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet—even more than a tropical rainforest. Occupying less than one percent of the ocean floor, coral reefs are home to more than 25% of all marine life. Where are the most diverse ecosystems? Cloud forests of Ecuador. The Amazon,…
Three different geographic features in Ancient Egypt are the Desert, the Delta, and the Fertile Land. The desert was a barren place full of sand dunes, mountains, and cliffs. The desert was a dangerous place and therefore acted as a natural barrier between ancient Egypt and invading foreign armies. What are Egypt physical characteristics? Southern…
The products of the light-dependent reactions, ATP and NADPH, are both required for the endergonic light-independent reactions. The light-dependent reactions involve two photosystems called Photosystem I and Photosystem II. What are the 3 products produce during light reaction? The Light Reactions The energy is then temporarily transferred to two molecules, ATP and NADPH, which are…
The four types most important to human structure and function are carbohydrates, lipids, proteins, and nucleotides. Before exploring these compounds, you need to first understand the chemistry of carbon. What are 3 common biochemical compounds? The vast number of biochemical compounds can be grouped into just four major classes: carbohydrates , lipids , proteins ,…
Take a walk or play a family game of tag after dinner each night. Choose activities that require movement, such as bowling, catch or miniature golf. Choose toys wisely. Give children toys that encourage physical activity, such as balls, kites, skateboards and jump ropes. How can physical activity give me opportunities to have fun or…
The four steps of translation are: Activation or charging of tRNA. Initiation – recognition of start codon, binding of ribosomal subunits to mRNA and formation of initiation complex with Met-tRNA at the P site. Elongation – peptide bond formation and growing of polypeptide chain. What are the 3 main components required for translation to occur?…
The study of ecosystems mainly consists of the study of certain processes that link the living, or biotic, components to the non-living, or abiotic, components. The two main processes that ecosystem scientists study are Energy transformations and biogeochemical cycling. What are the main ecosystem processes? Ecological processes such as primary production, respiration, energy, carbon and…
What is a limitation of the phylogenetic species concept? Detailed evolutionary histories have been described for relatively few groups of organisms, so biologists are not yet able to apply the phylogenetic species concept to all forms of life. What are two limitations of the biological species concept quizlet? Which of the following are limitations of…
Several factors contribute to species diversity, including habitat diversity, competition among species, and genetic diversity. Genetic diversity within a species not only is necessary to maintain diversity among species,6 but also contributes to the diversity of food, fiber, and medicines available from nature. What are three factors that affect biodiversity? Principal causes for the loss…
Statistics has often been misunderstood in Medicine, but it is indispensable knowledge both for the experimenter and the reader. Statistical methods allow to study diseases, patients, and epidemiological events. The modern researcher cannot refuse to know and to use statistics. Why is biostatistics important in biology? Biostatistics is assisting the medical research industry to safeguard…