QUESTION--> <span>The nucleolus is where _______ are constructed.
</span>ANSWER--> C) ribosomes
C. Mass
Mass is the amount of matter in an object.
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Answer:
The majority of genes carried in a cell's DNA specify the amino acid sequence of proteins; the RNA molecules that are copied from these genes (which ultimately direct the synthesis of proteins) are called messenger RNA (mRNA) molecules.
Answer: D. The kinds of organisms that lived there long ago.
Explanation: Finding fossils in an area can help us learn about the kinds of organisms that lived there long ago. The fossil leave traces behind about what type of animal lived there and who the animal was.
About 20 astronaut have faced fatalities during the space program.