lourniasimpson
lourniasimpson
22-03-2024
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Why do you think species remain in a stage of stasis? a. A stable ecological niche leads to absence of selection pressure, which in turn causes species to remai
The following balanced equation shows the formation of ethane (C2H6). C2H2 + 2H2=C2H6 How many moles of hydrogen are needed to produce 13.78 mol of ethane?
What does an -ite or -ate ending in a polyatomic ion mean? Sulfur is in the formula. Nitrogen is in the formula. Bromine is in the formula. Oxygen is in the for
Which sentence uses a reflexive pronoun correctly? They bought concert tickets for me and themselves A They bought concert tickets for me and themselves. B The
During science class, while studying mixtures, you mix together table salt and sand. You teacher challenges you to separate the salt from the sand. What propert
what could happen if the epiglottis fails to close correctly over the trachea when a person swallows? ) A. the person may experience heartburn B. the person ma
What is the difference between a buyer and a sales representative?
a sapling, or young tree, is planted in a garden. after 3 years, it is 180 cm tall. After 7 years, it is 368 cm tall. How tall will the tree be after 10 years?
Compare endothermic and exothermic reactions in terms of potential energy, heat flow, and observed temperature changes. Explain your answer in complete sentence
Find the measures of two angles, one positive and one negative, that are coterminal with pi divided by two.
