What was rudolph virchow’s contribution to the cell theory?
a. he concluded that all cells come from preexisting cells.
b. he concluded that cells are the basic units of structure and function of all living things.
c. he concluded that all organisms are composed of cells.
d. he concluded that all cells are similar in composition and metabolic activities.

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?

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?