If a Beaver Eats the Bark All the Way Around

question 75

Multiple Choice

If a beaver eats the bark all the way around a tree trunk (a process called "girdling") , why does the tree die?

• A)The tree is susceptible to insect and fungal diseases.
• B)The phloem is damaged, and the transport of sugars ceases.
• C)Cells of the lateral meristem can no longer continue to divide.
• D)Water and minerals are no longer supplied to the leaves.
• E)The tree cannot continue to photosynthesize.

Comprehend the direction of mRNA translation and protein synthesis.

Describe the ribosomal sites and the state of tRNA at these sites.

Explain codon-anticodon pairing and the principles of the genetic code.

Understand the charging of tRNA molecules and its significance.

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