Dianne's teacher has a chunk of dry ice for the class to look at. dry ice is a kind of frozen gas—it is very cold. the teacher warns her class not to touch it. when dianne holds her hand near it, it feels like the dry ice is radiating cold. what is really happening? a) heat energy from dianne's hand is being transferred to the dry ice even though she is not touching it. b) chemicals in the dry ice are tricking diane's nerves into thinking she feels cold. c) cold energy from the dry ice is being transferred to diane's hand even though she is not touching it. d) small pieces of the dry ice are breaking off and hitting diane's hand, making it feel cold.

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution. b.)biological evolution states laws that are part of mendel’s theory of genetics. c.)mendel’s genetics replaced darwin’s entire concept of biological evolution. d.)biological evolution is a law that explains why all genetics exist.

Ais not a mixture. colloid compound suspension solution

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings