It's what lets things in and out of the nucleus
The volume of the Earth's atmosphere is approximately 4.2 billion cubic kilometers.
No, nuclear power is not a fossil fuel. Fossil fuels are formed from the remains of living organisms over millions of years, while nuclear power is generated by splitting atoms in a process called nuclear fission.
The nuclear energy that is most important for life on Earth is the nuclear fusion that powers the sun. This energy is essential for providing heat and light, which support life on our planet. Nuclear fission, used in nuclear power plants, also plays a role in providing electricity for human activities.
The study of the structure of atomic nuclei is called nuclear physics. This field focuses on the properties and behavior of atomic nuclei, including their composition, size, stability, and interactions with other particles. Nuclear physics plays a crucial role in understanding processes such as nuclear reactions and nuclear energy generation.
This is an example of an arms control agreement, specifically the Comprehensive Nuclear-Test-Ban Treaty (CTBT). The treaty aims to prevent the testing of nuclear weapons and the spread of nuclear weapons technology, contributing to global nuclear non-proliferation efforts.
in what phase nuclear envelopes are absent?
Nuclear envelope surrounds the nucleus and separates its contents from cytoplasm.
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The phase where two new nuclear envelopes form around the two sets of daughter chromosomes is called telophase. In telophase, the nuclear membrane reforms around the chromosomes and the nucleoli reappear. This marks the end of nuclear division in cell mitosis.
Telophase is marked by the arrival of the chromosomes at the poles. They will arrive at opposite ends of the poles.
the job of nuclear membrane is to protect the nucleus.
No, prokaryotes don't have neclear envelopes in them either.
During cell division, the nuclear envelope doesn't really "divide", but rather it dissolves away to allow the chromosomes to line up to initiate metaphase.
Telophase
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the nuclear membrane's job is to protect the nucleolus, and to control what goes in, and out of the membrane.