Answer:Carbon dioxide accounts for most of the nation's emissions and most of the increase since 1990. Transportation is the largest source of greenhouse gas emissions in the United States, followed by electricity generation.
Explanation:
Answer:
Messenger RNA is a type of RNA that is necessary for protein production. In cells, mRNA uses the information in genes to create a blueprint for making proteins. Once cells finish making a protein, they quickly break down the mRNA. mRNA from vaccines does not enter the nucleus and does not alter DNA.
So the answer will be C or A
Explanation:
The exact reproduction of an individual from cellular tissue is called cloning.
Cloning is a scientific technique that is used to produce identical copies of an individual having similar genetic information.
In this process, a complete cell, tissue, gene, even an entire organism can be cloned.
A clone can be produced either by artificial or natural methods.
In nature, some unicellular organisms such as bacteria produce multiple copies of themselves by means of asexual reproduction.
The first ever human clone was named Eve in December 2002.
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they are both two types of grasslands
Semipermeable means the cell membrane can pick and choose what goes out of it and into it. At least, that's what I believe it is.