Punnet squares are a useful tool in genetic studies. Which of the following describes the most likely use of this tool? a. To quantify proportions of offspring with polygenetic traits
b. To determine the genotypic ratios of crosses
c. To determine frequencies of recombination
d. to measure phenotypic variability

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 of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity