Where does salt we eat come from? Nutrition and healthy eating Sea salt is produced through evaporation of ocean water or water from saltwater lakes, usually with little processing. Depending on the water source, this leaves behind certain trace minerals and elements. What if we ran out of minerals? Minerals make up most of what […]
What is the primary function of a stretch reflex?
What is the primary function of a stretch reflex? The stretch reflex (myotatic reflex), or more accurately “muscle stretch reflex”, is a muscle contraction in response to stretching within the muscle. The reflex functions to maintain the muscle at a constant length. What do stretch receptors do? muscle systems …has important sensory structures called stretch […]
Which element has no electrical charge at all?
Which element has no electrical charge at all? Answer: Atoms of all elements – except for most atoms of hydrogen – have neutrons in their nucleus. Unlike protons and electrons, which are electrically charged, neutrons have no charge – they are electrically neutral. What is a subatomic particle with a positive charge? The nucleus contains […]
What were the first hominins?
What were the first hominins? australopithecines What four characteristics define a hominin? Some characteristics that have distinguished hominins from other primates, living and extinct, are their erect posture, bipedal locomotion, larger brains, and behavioral characteristics such as specialized tool use and, in some cases, communication through language. What are 5 types of hominids? In this […]
What is the difference between a supersaturated solution and a saturated solution?
What is the difference between a supersaturated solution and a saturated solution? A saturated solution contains the maximum amount of solute that will dissolve at that temperature. Any further addition of solute will result in undissolved solid on the bottom of the container. A supersaturated solution contains more than the maximum amount of solute that […]
What are two things that might affect an ecosystem?
What are two things that might affect an ecosystem? Wind, rain, predation and earthquakes are all examples of natural processes which impact an ecosystem. Humans also affect ecosystems by reducing habitat, over-hunting, broadcasting pesticides or fertilizers, and other influences. What can disrupt an ecosystem? Disruptions to Ecosystems Wildfires. Fire is a common disruption to ecosystems […]
What task requires the most work lifting a 50 kg sack 2 meters or lifting a 25 kg sack 4 meters?
What accident happened at Chernobyl quizlet?
What accident happened at Chernobyl quizlet? A: explosions that ruptured one of the reactors of the Chernobyl nuclear power plant and the consequent fire that started on the 26 April 1986 and continued for 10 days resulted in an unprecedented release of radioactive materials into the environment. What date and time did the accident at […]
What is the flat ocean floor called?
What is the flat ocean floor called? abyssal plain What are the three divisions of the continental margin? The continental margins consist of three portions: (1) the continental shelf which has shallow water depths rarely deeper than 650 ft) and extends seaward from the shoreline to distances ranging from 12.3 miles to 249 miles, (2) […]
How do you choose a schedule for reinforcement?
How do you choose a schedule for reinforcement? Choosing a Schedule of Reinforcement When choosing a schedule, consider: The skill of the staff implementing the intervention. The desired rate of responding. The need for consistency in responding. What is an example of fixed interval? A weekly paycheck is a good example of a fixed-interval schedule. […]