What cells do plants have that animals don t? Animal cells have centrosomes (or a pair of centrioles), and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not. Why are plant cells Square? Plant cells […]
When would a sailboat be the give-way vessel?
When would a sailboat be the give-way vessel? Paths That Cross: The power-driven vessel is the give-way vessel. The sailing vessel is the stand-on vessel. Overtaking: The vessel that is overtaking another vessel is the give-way vessel, regardless of whether it is a sailing vessel or a power-driven vessel. The vessel being overtaken is always […]
What are the main factors of contact metamorphism?
What are the main factors of contact metamorphism? The main factors that control metamorphic processes are: The mineral composition of the parent rock. The temperature at which metamorphism takes place. The amount and type of pressure during metamorphism. The types of fluids (mostly water) that are present during metamorphism. The amount of time available for […]
What is the centripetal force that allows a car to turn?
What is the centripetal force that allows a car to turn? friction What is difference between centripetal force and centrifugal force? Centripetal force is defined as, “the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation,” while centrifugal force is defined […]
What is Rhat Bayesian?
What is Rhat Bayesian? Rhat refers to the potential scale reduction statistic, also known as the Gelman-Rubin statistic. This statistic is (roughly) the ratio of the variance of a parameter when the data is pooled across all of the chains to the within-chain variance. How is R Hat calculated? To find ‘r hat”s, you need […]
What nerve sends signals to brain?
What nerve sends signals to brain? There are basically two major types of nerves: sensory and motor. Sensory nerves send information such as touch, temperature, and pain to the brain and spinal cord. Motor nerves send signals from the brain back into the muscles, causing them to contract either voluntarily or reflexively. What part of […]
What is sliding friction with example?
What is sliding friction with example? Specific examples of sliding friction include: Rubbing both hands together to create heat. A sled sliding across snow or ice. Skis sliding against snow. A person sliding down a slide is an example of sliding friction. What is the formula for sliding friction? The coefficient of friction (fr) is […]
What are disadvantages of DC?
What are disadvantages of DC? Disadvantages of DC Transmission: Due to commutation problem, electric power can’t be produced at High (DC) Voltage. In High Voltage transmission, we cant step-up the level of DC Voltage (As Transformer won’t work on DC). There is a limitation of DC switches and circuit breakers (and they are costly too). […]
What is a real life example of a transverse wave?
What is a real life example of a transverse wave? Examples of transverse waves include vibrations on a string and ripples on the surface of water. We can make a horizontal transverse wave by moving the slinky vertically up and down. In a longitudinal wave the particles are displaced parallel to the direction the wave […]
Why is it important to use scientific method?
Why is it important to use scientific method? The scientific method attempts to minimize the influence of bias or prejudice in the experimenter. Even the best-intentioned scientists can’t escape bias. That’s the job of the scientific method. It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results. Why is […]