For centuries scientists thought the Universe always existed in a largely unchanged form, run like clockwork thanks to the laws of physics. But a Belgian priest and scientist called George Lemaitre put forward another idea. In 1927, he proposed that the Universe began as a large, pregnant and primeval atom, exploding and sending out the smaller atoms that we see today.
His idea went largely unnoticed. But in 1929 astronomer Edwin Hubble discovered that the Universe isn’t static but is in fact expanding. If so, some scientists reasoned that if you rewound the Universe's life then at some point it should have existed as a tiny, dense point. Critics dismissed this: the celebrated astronomer Fred Hoyle sarcastically called this concept the “Big Bang Theory"
The answer for your question is C
Yes - diffusion is a broad term that may be applied to a vast number of substances and is not limited to liquids ( gases can diffuse too). osmosis refers to the diffusion of liquid water down the water potential gradient
Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic, which do not. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular.
Yes
Explanation:
If two bottles are made up of the same substances, their particles are identical and the same.
According to the law of constant composition "all pure samples of the same chemical compounds contain the same proportions of the elements by mass".
- Every time we have a particular substance, it has the same percentage composition
- If we have two bottles lets say containing water.
- Both bottles would be made up of water molecules with two atoms of hydrogen and 1 atom of oxygen in their composition.
- So they contain the same substances that are the same and identical.
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