The organelle that is responsible for directing all cellular activities is the:
a. mitochondria
c. nucleus
b. endoplasmic reticulum
d. golgi apparatus

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

Land conservation is a worldwide priority. there are several methods to prevent the loss of land due to a variety of reasons. which method is not a way to conserve land? a) sea walls b) rainwater harvesting c) limits on clear cuts of forests d) cut and burn methods of clearing land