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mamaluj [8]
3 years ago
5

After soaking the gummy bear in water overnight, you observed that the gummy bear in the tap water increased in size. Which stat

ement best explains what is causing this change?
A. Water is moving into the gummy bear because the concentration of water molecules inside the gummy bear is lower than outside.

B. Water is moving out of the gummy bear because the concentration of water molecules inside the gummy bear is higher than outside.

C. Water is moving into the gummy bear because the concentration of water molecules inside the gummy bear is higher than outside.

D. Sugar from inside the gummy bear is moving out of the gummy bear into the surrounding solution because the concentration is higher inside than outside.
Biology
1 answer:
Bas_tet [7]3 years ago
8 0
<span>A. Water is moving into the gummy bear because the concentration of water molecules inside the gummy bear is lower than outside.
</span>
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Diffusion is the spontaneous movement of substances from a region of high concentration to a region of low concentration.

Osmosis is the passage of water molecules from a high water concentration region through a selectively permeable membrane to a low water concentration region.

In diffusion, selectively permeable membrane is neither required nor involved while in osmosis, it is involved.

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Write a summary about the cell theory
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Answer:

Over the next two centuries after the discoveries of Hooke and Leeuwenhoek, biologists found cells everywhere. Biologists in the early part of the 19th century suggested that all living things were made of cells, but the role of cells as the primary building block of life was not discovered until 1839 when two German scientists, Theodor Schwann, a zoologist, and Matthias Jakob Schleiden, a botanist, suggested that cells were the basic unit of structure and function of all living things. Later, in 1858, the German doctor Rudolf Virchow observed that cells divide to produce more cells. He proposed that all cells arise only from other cells. The collective observations of all three scientists form the Cell Theory, which states that:

all organisms are made up of one or more cells,

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all known living things are made up of one or more cells,

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energy flow (metabolism and biochemistry) occurs within cells,

cells contain hereditary information (DNA) which is passed from cell to cell during cell division,

all cells are basically the same in chemical composition in organisms of similar species.

The Cell Theory is one of the main principles of biology. The points of the theory have been found to be true for all life. As with any scientific theory, the Cell Theory is based on observations that over many years upheld the basic conclusions of Schwann’s 1839 paper. However, one of Schwann’s original conclusions stated that cells formed in a similar way to crystals. This observation, which refers to spontaneous generation of life, was discounted when Virchow proposed that all cells arise only from other cells. The Cell Theory has withstood intense examination of cells by modern powerful microscopes and other instruments. Scientists continue to use new techniques and equipment to look into cells to discover additional explanations for how they work.

Explanation:

Hope I helped!

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Answer:

consistent warm weather

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