Avariety of different mechanisms in nature create diversity in organism populations. the tundra found in the northernmost parts of the planet is the world’s youngest biome. the tundra is home to a variety of plants and animals. organisms that can be found in the tundra include shrubs, mosses, caribou, polar bears, and wolves. which mechanism do the different organism populations found across the tundra exemplify?

1. genetic diversity
2. ecosystem diversity
3. species diversity
4. variation

The movement of tectonic plates in two different locations is shown below: two blocks labeled location a and location b are shown. at location a the top layer of the block shows two horizontal arrows pointing towards each other. small dunes are shown in the middle between the two arrows. the block labeled b has a vertical line in the middle. on the left of the line there is an arrow pointing down. on the right of the vertical line there is an arrow pointing up which statement is most likely true? subduction may occur in both locations. earthquakes may occur in both locations. subduction may occur in location a only and a volcanic eruption may occur in location b only. an earthquake may occur in location a only and a volcanic eruption may occur in location b only.

What was the land like over 500 million years ago? what was under the sea?

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins