12 Questions
What is the primary mechanism driving sexual selection?
Natural selection acting on traits affecting mate attraction
Who conducted a study on the energetic investment in gametes by females versus males in various animals?
April Hayward and James Gillooly
How much more energy does a typical female devote to egg production compared to basal metabolism during the breeding season?
Three times the energy
What is the total expenditure on ejaculates for a typical male, including seminal fluid, compared to his energy spent on basal metabolism?
Four thousandths the energy
When eggs are more expensive than ejaculates, what factors limit lifetime reproductive success?
Factors favoring females
What is the key difference between male and female reproductive strategies in terms of energy investment?
Females invest more energy in gamete production
What type of mating pattern occurs when females choose mates based on their display characteristics?
Assortative mating
In the study by Lynda Delph and colleagues, what type of plants were surveyed to test the attractiveness of male flowers?
Animal-pollinated plants
What is the primary goal of sexual selection?
Reproductive success
What is the purpose of courtship behaviors in animals?
To communicate readiness for mating
What type of characteristic is a lion's mane?
Secondary sexual characteristic
What is the significance of female choice in sexual selection?
It drives the evolution of male traits
Test your knowledge of biological concepts with this quiz! Learn about sexual selection, natural selection, and the scientists who contributed to our understanding of these processes. Evaluate your understanding of the mechanisms that shape the evolution of species.
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