What is the ratio of male to female conceptions in a population called?
A) secondary sex ratio
B) conception birth order number
C) gender order
D) anomalous gender reorder calculation
E) primary sex ratio
Answer: E
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a. true b. false
Where does the most energetically costly mode of locomotion occur?
A. On land B. Locomotion in the water and on land are nearly equivalent in terms of energy expenditure. C. In the water D. In the air
Sometimes when a new mother is nursing her baby, she experiences abdominal cramping. Which hormone is responsible?
A) Estrogen B) Progesterone C) FSH D) Oxytocin E) Prolactin
Which is the most frequently chosen prokaryotic host for use in cloning techniques?
A. Bacillus subtilis B. Escherichia coli C. Saccharomyces cerevisiae D. Staphylococcus aureus