Answer:
Closed Systems. The earth system as a whole is a closed system. ... Virtually no mass is exchanged between the Earth system and the rest of the universe (except for an occasional meteorite). However, energy in the form of solar radiation passes from the Sun, through the atmosphere to the surface.
Explanation:
1.answer: As the focal distance increases the eccentricity decreases making the planets orbit more circular 2.answer:0
The correct statement is that the ribozymes may function in RNA splicing.
Non-proteinaceous RNA enzymes are known as ribozymes. They function as molecules that catalyze reactions in which RNA is the catalyst. Within the nucleic acid molecules, these molecules have the capacity to both break and create covalent bonds. RNA splicing may be facilitated by ribozymes. Despite having a small chemical repertoire, they have a wide range of biological functions and are essential for the three kingdoms of life. They are involved in the maturation of transfer RNA, intron splicing, the replication of RNA viruses or viroids, the control of messenger RNA stability, and protein synthesis.
To learn more about ribozymes and splicing here,
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<span>Answer: Using a jackhammer on a rock does not change its structure, just breaks it into smaller pieces. Changing the crystalline structure requires partial or complete melting of the rock.
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