Just to keep you in practice, a couple of the much beloved multiple multiple choiceâ¦
1. An increase in CO2 levels in the blood directly or indirectly causes which of the following?
A) an increases in ventilation rate
B) a decrease in the pH
C) a decrease in hemogloginâs binding affinity for O2
D) a decrease in the O2 levels in the blood
E) an immediate increase in the number of red blood cells found in the blood stream
2. _____ Females that reproduce sexually versus asexually are said to incur a âtwo-fold cost of sexual reproduction.â Which of the following costs are associated with sexual reproduction for females?
A) MALES! That do-nothing lot really does not directly contribute offspring to the next generation. Females would be better off making all daughters.
B) FEMALES! In most natural settings, those daughters compete with their mothers for potential mates and resources needed to successfully reproduce.
C) MITOSIS! Since sexual reproduction can produce many more offspring than asexual reproduction, there are energetic costs associated with the mitotic divisions required to produce those offspring.
D) MEIOSIS! Every time a gamete is produced, the parent loses a little bit of itself. Half to be precise since only half of its genes are passed on to sexually produced offspring.
E) DIVERSITY! Mothers maximize fitness if all offspring are genetically just like them. Sexual reproduction causes genetic diversity, which ultimately lowers the fitness of both parents.
Just to keep you in practice, a couple of the much beloved multiple multiple choiceâ¦
1. An increase in CO2 levels in the blood directly or indirectly causes which of the following?
A) an increases in ventilation rate
B) a decrease in the pH
C) a decrease in hemogloginâs binding affinity for O2
D) a decrease in the O2 levels in the blood
E) an immediate increase in the number of red blood cells found in the blood stream
2. _____ Females that reproduce sexually versus asexually are said to incur a âtwo-fold cost of sexual reproduction.â Which of the following costs are associated with sexual reproduction for females?
A) MALES! That do-nothing lot really does not directly contribute offspring to the next generation. Females would be better off making all daughters.
B) FEMALES! In most natural settings, those daughters compete with their mothers for potential mates and resources needed to successfully reproduce.
C) MITOSIS! Since sexual reproduction can produce many more offspring than asexual reproduction, there are energetic costs associated with the mitotic divisions required to produce those offspring.
D) MEIOSIS! Every time a gamete is produced, the parent loses a little bit of itself. Half to be precise since only half of its genes are passed on to sexually produced offspring.
E) DIVERSITY! Mothers maximize fitness if all offspring are genetically just like them. Sexual reproduction causes genetic diversity, which ultimately lowers the fitness of both parents.
