Prior to the publication of Charles Darwin's book, On the Origin of Species, what was the prevailing public consensus regarding species evolution?
A. That species were permanent and unchanging
B. That species evolved through physical changes that led to success
C. That species were modified over time, but did not change into new species
D. That species evolved by means of natural selection
Ans: A. That species were permanent and unchanging
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An Arabidopsis plant that contains a mutant mp gene would most likely:a
lack roots. b. develop into callus. c. produce buds but not leaves. d. produce flowers but not fruits. e. lack a stem.
The chemical structure of the 5' mRNA cap includes ______________ covalently linked to the 5' terminal residue of the mRNA through a ______________ linkage
A. 7-methylguanosine / 5' to 3' phosphodiester B. N-formyladenosine / 5' to 3' diphosphate C. 7-methylguanosine / 5' to 5' triphosphate D. 7-methylcytosine / 5' to 5' phosphodiester
Briefly describe or give examples of adaptations that help desert plants reduce water loss. What will be an ideal response?
Which of the following is (are) NOT true concerning
glandular epithelium? a. Gland cells occur in it. b. It is found in locations other than glands. c. It secretes products unrelated to its own metabolism. d. Its products are distributed only locally. e. All of these are NOT true.