Below is part of a field guide that several students have been using to identify trees in a local park. The students notice that one plant has thin 1.2cm needles that occur in clusters. Which of the following inferences can be made?

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?