The apple host race (or biotype) of the Rhagoletis pomonella fruit flies evolved after non-native apples were colonized by individuals of R. pomonella's hawthorn race (hawthorn is the original native host of R. pomo-nella)
If the two host races should become two different species over time, would this case represent an example for cospeciation? Briefly justify your answer.
What will be an ideal response?
ANS:
No, R. pomonella switched hosts and did not speciate when its host speciated.
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Metabolic reactions fall under two general categories: anabolic and catabolic. What type of chemical reactions are these two classes of metabolic reactions?
A. Anabolic reactions are exergonic reactions, whereas catabolic reactions are endergonic. B. Both anabolic and catabolic reactions are exergonic. C. Both anabolic and catabolic reactions are endergonic. D. Anabolic reactions are endergonic reactions, whereas catabolic reactions are exergonic.
The surge of which hormone will trigger ovulation?
a. Progesterone b. Luteinizing hormone c. Estrogen d. Testosterone e. Follicular stimulating hormone
Competition among members of the same species is known as ___________.
Fill in the blank(s) with the appropriate word(s).
T or F: Calcium ions are stored within the synaptic terminal
What will be an ideal response?