Zoe made the following table to compare prokaryotic and eukaryotic cells.

Structure Prokaryotic cell Eukaryotic cells
Cell wall is present Yes Sometimes
Flagellum for movement Yes No
X is present Yes Yes

Which of the following would best replace X?
DNA
Mitochondria
Nucleus
Vacuole

Defend or refute the argument that the government has too large a presence in the agriculture industry.

In what for do plants utilize nitrogen? why do they need nitrogen?

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