14. The diagram below represents changes in the sizes of openings present in leaves as a result of the actions of cells X and Y. The actions of cells X and Yhelp the plant to
1. maintain homeostasis by controlling water loss
2. store excess heat during the day and remove the heat at night
3. absorb light energy necessary for cellular respiration
4. detect changes in the biotic factors present in the environment

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.