7. Choose the best answer.

Increased input to this cycle may be responsible for global warming.
carbon
potassium
nitrogen
phosphorus

List two modern organisms that have pentameral symmetry

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3