new fossil primates are recovered in a stratigraphic layer of volcanic ash that includes fossil molars of a pig species known to have become extinct about 30 million years ago. identify the fossil dating methods that are appropriate to use in determining the age of the fossil primates.

Which of the following is the most likely result of converting forestland to urban development? a. the amount of land available for lumber production decreases. b. fewer trees are needed because cities are made mainly of concrete. c. people discover more efficient ways to grow trees. d. the price of lumber goes down.

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

Describe the function of the endomembrane system? what organelles are involved?