Theories are often the best explanations of natural phenomena we currently have. Yet, what one has to realize is that science is ever changing. That is why (B) is the correct answer, as new examinations, experiments, and discoveries could change some of these well-accepted theories. There is no way to "harm science" with viable observations and discoveries so (A) is incorrect. Answer (D) is also wrong since there is no assurance that a theory will never change in the future as they are merely accepted hypotheses. Answer (C) is not the best answer since theories are usually well supported and wouldn't be veritable if every examination proved flaws.
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Answer:
<u>Part A</u>
Drag these words to the space
(1) tRNA: "contains an anticodon" "has amino acids covalently attached in active form"
(2) mRNA: "has introns and exons" "contains genes for a protein"
(3) rRNA: "is found in ribosomes" "is the most abundant form of RNA"
<u>Part B</u>
(1) Replication: Leave blank because no RNA is involved
.
(2) Transcription/RNA processing: mRNA because it is synthesized from the information in DNA
(3) Translation: rRNA and tRNA
Answer:
Your answers are CYTOPLASM and CYTOSKELETON.
<span>The answer is A. Food has been, since the emergence of life
on earth, the first source of energy for organisms. This energy was harnessed through
respiration to enable growth and development, movement and also provide heat. Ancient
humans then discovered fire and also harnessed its energy to cook food (making food
easily digestible) and also warming themselves during winter. </span>
