Which statement best describes the theory of plate tectonics? Plates sometimes move closer to one another. Sections of Earth that shift are part of Earth’s asthenosphere. Sections of Earth’s continents are in slow, constant movement. Parts of the ocean floor move as they are carried by rift valleys.

Provide one reason why mitosis occurs.

The study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?