What is the selective advantage for a male to participate in a polyandrous mating system?
A. He is more likely to obtain more mates than if he did not cooperate.
B. He cannot outcompete other males for female attention.
C. His offspring are unlikely to survive without his parental care.
D. He cannot provide any parental care.
Ans: C. His offspring are unlikely to survive without his parental care.
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Most scientists believe that prokaryotes evolved from eukaryotes
Indicate whether the statement is true or false.
When a bacterium acquires a trait from its temperate phage, it is called ________.
A. transcription B. lysogenic conversion C. transformation D. viral persistence E. translation
A protein being synthesized by a cell for export would follow which pathway in the cell?
A. ribosome to cell membrane B. ribosome to lysosome to endoplasmic reticulum to Golgi apparatus to cell membrane C. ribosome to endoplasmic reticulum to Golgi apparatus to cell membrane D. ribosome to Golgi apparatus to endoplasmic reticulum to cell membrane
Answer the following questions true (T) or false (F)
1. Although they produce flowers, cacti with needle-like leaves would be classified as gymnosperms rather than angiosperms. 2. Angiosperm flowers always self-pollinate because they have both male and female reproductive structures. 3. A fibrous root system is made of roots that are all about the same size.