Your senior thesis project involves working out the taxonomy of Florida skinks. To accomplish this you examine skink specimens for morphological differences compare nucleotide and amino acid sequences and observe the skinks reproductive behavior and habitat types. Once you have completed the taxonomy and written the thesis you give it to your professor for comments. She tells you that you did a great job and should try to get your work published. However she suggests you indicate in the introduction what species concepts you used to make your classifications. What statement would you add?
A. Taxonomic determinations were made based on the general lineage species concepts.
B. Taxonomic determinations were made based on the ecological species concepts.
C. Taxonomic determinations were made based on the evolutionary lineage species concepts.
D. Taxonomic determinations were made based on the biological species concepts.
Answer: A
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Congenital non-spherocytic haemolyic anaemia (CNSHA) is caused by a mutation of one or more of the enzymes of the glycolytic pathway. The most common is a mutation in the gene for pyruvate kinase resulting in a non-functional enzyme. Patients with CNSHA often show marked ATP deficiencies. Given what you know about this enzyme’s action, why would this be expected?
a. Pyruvate kinase produces ATP when it phosphorylates glucose to glucose-6-phosphate. b. Pyruvate kinase uses excess ATP when it phosphorylates fructose-6-phosphate. c. Pyruvate kinase produces ATP when it generates pyruvate from phosphophoenolpyruvate (PEP). d. Pyruvate kinase uses excess ATP when it catalyzes the dehydration of 2-phosphoglycerate.
In insects and spiders, __________ take up fluid,
uric acid, and solutes from the blood and deliver them to the gut. Fill in the blank(s) with the appropriate word(s).
Which group of genes in Drosophila embryos must be mutated if the result is elimination of a significantly sized, contiguous region of segmentation?
What will be an ideal response?
Which of the following is the bacterial equivalent of sexual intercourse?
What will be an ideal response?