C. membrane bound organelles and no distinct nucleus
DNA helicase - unzips the DNA double helix
DNA Polymerase - edits genes to ensure there are no errors, a 'proofreading system'.
DNA ligase - joins all the DNA together
Answer:
The presence of pillow lavas in the oldest preserved volcanic sequences on the planet, the Isua and Barberton greenstone belts, confirms the presence of large bodies of water on the Earth's surface early in the Archean Eon. Pillow lavas are used generally to confirm subaqueous volcanism in metamorphic belts.
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Answer:
A half filled orbital is LESS LIKELY to be reactive than a fully filled orbital
Explanation: A fully filled orbital has the electronic configuration of a noble gas. That is, unreactive.
The quantum states of these orbitals(fully filled) are stable because the electrons in the sub shell are fully filled which makes it difficult for it to loose and gain electron unlike a half filled which is much more easier. It will take more energy for ionization to take place making it(fully filled) more stable.
the answer to your question is true
