Help pl Thomson's contribution to the atomic theory was the discovery that negatively-charged electrons were embedded within a positively-charged "soup". Later on, Rutherford performed the gold foil experiment which altered Thomson's contribution. What were the conclusions of Rutherford's Gold Foil Experiment? Group of answer choices The atom is made up of mostly empty space with a tiny, dense, positively-charged nucleus.

The atom is mostly empty space, with negative charge concentrated at the center.

The atom is mostly empty space, with positive charges spread evenly across it.

The atom is mostly empty space. No other conclusions could be made.

The rate at which molecules water and oxygen can enter a cell is determined by the-

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?

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive