1. This document discusses key concepts related to life history and the costs of reproduction for organisms. It covers topics like different modes of reproduction (sexual vs. asexual), trade-offs between offspring number and parental investment, and strategies like iteroparity versus semelparity.
2. Shorter-lived animals tend to favor fast reproduction since time is critical, while longer-lived species can benefit more from delaying reproduction to grow larger and invest more in fewer offspring.
3. Trade-offs exist between offspring number and investment per offspring, and natural selection favors strategies that maximize reproductive success given environmental conditions and a species' life history.
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Life history & cost quiz
1. Life History and Cost of Reproduction
Name: Date:
Course and Year: Instructor:
I. Choose the best answer and write it before the number
1. What do you call the biological process by which new "offspring" individual organisms are
produced from their "parents"?
a. birth b. growth c. procreation d. puberty
2. It is a method of reproduction that deals with union of sperm and egg cells.
a. sexual b. asexual c. meiosis d. mitosis
3. What constitutes the complete life cycle of an organism?
a. trade-offs b. reproduction c. natural selection d. life history
4. Some organisms such as honey bees and fruit flies retain sperm in a process called _____
thereby increasing the duration of their fertility.
a. sterility b. storage c. sperm storage d. sperm duration
5. These organisms reproduce not constantly throughout their life.
a. semelparous b. polycyclic c. iteroparous d. polygamous
6. The biological study of how the origin of life led from non-reproducing elements to reproducing
organisms is called ______
a. abiogenesis b. biogenesis c. parthenogenesis d. osmosis
7. Birds that have more offspring each year have a higher probability of dying during that year.
Conversely, individuals that delay reproduction may?
a. Grow slowly b. grow larger c. grow faster d. both b and c
8. When the cost of reproduction is low, individuals should produce as _____ offspring as possible
because there is a little cost.
a. Many b. few c. larger d. smaller
9. It exists between number of offspring and investment per offspring.
a. trade-offs b. reproduction c. natural selection d. life history
10. In shorter-lived animals, time is of the essence; thus, ______ reproduction is more critical than
juvenile training.
a. Slow b. moderate c. fast d. quick
II. Essay. (use the back of this paper)
1. Explain what is Lottery principle? 5 pts.
2. Give the 2 points that natural selection favors and explain.5 pts.