Which conclusion can be drawn based on the sedimentary rock diagram below? a. trilobites are younger than clams. b. snails and clams evolved into mammals. c. all species once lived on land. d. biodiversity increased with time.

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

In which of the following relationships is one organism always benefited while the other organism is always harmed

If a grape were placed in a hypertonic solution what would happen and why?