Which moth is best adapted for the dark color forest? In 1896, J. W. Tutt suggested that the peppered moths were an example of natural selection. He recognized that the camouflage of the light moth no longer worked in the dark forest. Dark moths live longer in a dark forest, so they had more time […]

Which compound contains two hydrogen atoms in every molecule? Water, which is a chemical compound of hydrogen and oxygen in the ratio two hydrogen atoms for every oxygen atom, contains H2O molecules. Sodium chloride is a chemical compound formed from sodium (Na) and chlorine (Cl) in a 1:1 ratio. What are inorganic molecules? Molecules other […]

What will happen to the sizes of the populations in the food web if the sea otter disappears? What will happen to the sizes of the populations in the food web above if the sea otter disappears? Large fish increase and sea urchins decrease. Which of the following is the best definition of a population? […]

Is drag a balanced force? The forces of gravity and thrust, which act in opposite directions, are not balanced. The forces acting on it include drag, lift, gravity and thrust. Obviously the plane is acted on by unbalanced forces. Since the plane is climbing, the force of lift is greater than the force of gravity […]

What are possible causes for not doing your homework? 10 Real Reasons Students Aren’t Doing Their Homework It’s boring. The instructions are too hard to understand. It’s too easy. It’s not a priority. They forgot. It’s pointless and irrelevant. There’s no place to do it. They don’t have the necessary equipment. What to do when […]

Where does an organism pass its characteristics on to its offspring? Unit C Science Question Answer The passing of traits from parents to offspring. Heredity A characteristic that an organism can pass on to its offspring through its genes. Trait The set of information that controls a trait; a segment of DNA on a chromosone […]

Do all metals have 2 oxidation numbers? All the other elements have at least two different oxidation states. It was mentioned previously that both copper and chromium do not follow the general formula for transition metal oxidation states. This is because copper has 9 d-electrons, which would produce 4 paired d-electrons and 1 unpaired d-electron. […]

How does land use affect runoff? Change in Land Cover and Land Use (LCLU) influences the runoff characteristics of a drainage basin to a large extent, which in turn, affects the surface and groundwater availability of the area, and hence leads to further change in LCLU. This forms a vicious circle. What are the factors […]

What sphincter connects the stomach to the duodenum? The pyloric sphincter is a ring of smooth muscle that connects the stomach and small intestine. It opens and closes to control the passage of partially digested food and stomach juices from the pylorus to the duodenum. What sphincter allows food into the stomach? A specialized ring […]

Why do we consider a cell to be alive? Each cell is capable of converting fuel to useable energy. Therefore, cells not only make up living things; they are living things. Cells are found in all plants, animals, and bacteria. What are the 5 major types of cellular adaptation? Five major types of adaptation include […]