Is mutation good or bad? A beneficial, or advantageous mutation increases the fitness of the organism. Examples are mutations that lead to antibiotic resistance in bacteria (which are beneficial for bacteria but usually not for humans). A neutral mutation has no harmful or beneficial effect on the organism. Can a mutated gene be repaired? For […]
Who controls the activities of cell?
Who controls the activities of cell? nucleus Who controls all the functions of a cell? The nucleus is the control center of the cell that contains the chromosomes with their genetic material, DNA. The nucleus controls all cellular functions. Which do not allow anything to get in and out of the cell? (i) Nucleus controls […]
Which evidence best supports the conclusion that the narrator is telling the story with a particular child in mind the crab that played with the sea?
Which evidence best supports the conclusion that the narrator is telling the story with a particular child in mind the crab that played with the sea? Answer: I think the evidence that best supports the conclusion that the narrator is telling this story with a particular child in mind is the repetitive use of the […]
Why is KC only affected by temperature?
Why is KC only affected by temperature? Increasing the temperature decreases the value of the equilibrium constant. Where the forward reaction is endothermic, increasing the temperature increases the value of the equilibrium constant. It will do that by favouring the reaction which absorbs heat. Is chocolate candy melting exothermic? (d) chocolate candy melting. A process […]
What is the definition of impulse buying?
What is the definition of impulse buying? Definition: Impulsive buying is the tendency of a customer to buy goods and services without planning in advance. When a customer takes such buying decisions at the spur of the moment, it is usually triggered by emotions and feelings. Impulsive buying means making an unplanned purchase. What is […]
What are the different changes that will dramatically occur during adolescence?
What are the different changes that will dramatically occur during adolescence? Researchers of human development have consistently observed that the second decade of life is a time of dramatic change: a period of rapid physical growth, endocrine (hormone) changes, cognitive development and increasing analytic capability; emotional growth, a time of self-exploration and increasing independence, and […]
What is the outside of an atom called?
What is the outside of an atom called? The outermost regions of the atom are called electron shells and contain the electrons (negatively charged). Structure of an atom: Elements, such as helium, depicted here, are made up of atoms. Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals […]
Where do P waves travel fastest?
Where do P waves travel fastest? mantle Are P waves faster than S waves? P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and […]
Does heat affect light?
Does heat affect light? Heat does not directly affect the light, but it does indirectly interact with light in two ways. Heat causes a slight change in the refractive index of the medium. Why does heat make things blurry? As the hot and cool air mix, light that’s traveling through the air goes in and […]
What is the height of the ocean?
What is the height of the ocean? Its elevation is 400 meters (1,312 feet) below sea level. However, if depth were measured from the ocean floor, the Challenger Deep in the Pacific Ocean would be the lowest place on Earth. It measures 11,034 meters (36,200 feet) below sea level. Why is the sea not flat? […]