List the four major characteristics of chordates.
What will be an ideal response?
Dorsal hollow nerve cord, gill slits, postanal tail, and a notochord at some point in their life span.
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The sequence of amino acids specified by this mRNA (AUGCGUCCA) is
a. serine - histidine - lysine. b. methionine - arginine - proline. c. methionine - alanine - serine. d. valine - arginine - leucine. e. valine - proline - methionine.
A physiological alarm reaction, followed by resistance, and ending with exhaustion is known as _____.
A. the fight or flight response B. the general adaptation syndrome C. HPA axis D. SAM system
What structure contains the main information storage system of eukaryotes?
A. nucleolus B. nucleoplasm C. chloroplast D. nucleus
You have a small tree in your yard that is the height that you want it, but does not have as many branches as you want. How can you prune it to trigger it to increase the number of branches?
A) Cut off the leaves at the ends of several branches. B) Cut off the tips of the main shoots. C) Cut off lower branches. D) Cut off the leaves at the base of most of the branches.