The way an individual's energy is divided among growth, maintenance, and reproduction is controlled by the species' genes and is shaped by natural selection. Different species divide their energy in different ways, but the way energy is divided results in the greatest given the species' niche. O body size o individual survival O lifetime reproductive success
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- The way an individual's energy is divided among growth, maintenance, and reproduction is controlled by the species" ways, but the way energy is divided results in the greatest given the species' niche. O body size individual survival O lifetime reproductive successWhich of the following set of characteristics would best described a K-selected species (e.g. an elephant)? early reproduction with many, small offspring and short-lived early reproduction with few, large offspring and short-lived late reproduction with few, large offspring and long-lived O late reproduction with many, small offspring and long-livedIti do a cohort study on some new cute animal, and I discover that most of the individuals die at a relatively young age, and only a few live close to the maximum age for the species, what would you predict about the reproductive strategy of this species? O They probably produce relatively few offspring and invest a lot of parental care into each offspring. O They probably produce a lot of offspring, and invest a lot of parental care into each one. O They probably produce a lot of offspring but do not invest much parental care in any individual offspring O They probably produce offspring only after individuals manage to live to close to their maximum age
- Humans often kill rattlesnakes that they encounter. Rattlesnake populations close to human habitation thus experience higher adult mortality rates. As Dr. Beck has found in his research on Northern Pacific Rattlesnakes in Washington state, these populations tend to evolve a shift toward more "r-selected" life-history strategies, such as (select all that apply): Smaller size at first reproduction. Early age at first reproduction. O More extensive parental care. O A few large offspring per reproductive event. Lots of small offspring per reproductive event.Time O The horses are no longer in competition for resources with other species. O Predation is low and resources are high. O The horse population has reached the carrying capacity of its environment. O Interbreeding is occurring between members of different species. Population sizeEvolution is a property of individuals O populations O individuals and populations
- Which of the following increase genetic variation in a population? O Founder effect O Mutations O Natural selection O Sexual reproduction O Bottleneck effected to court femaigs and to defend tertory What kind of traits result from Competition Tor mates Sexually selected traits lin most species males can potentially have a huge number of offspring, but in order to realize even a fraction of their reproductive potential, they have to compete with other males (because the number of female eggs is a limiting factor, and because females evolved to be picky). Omaments on males and structures used to compete for mstes (antlers) selective pressure on males from competition with other males over females? - Behaviors such as bower construction, that are -Energeticaty expensive --Ridoulously conspiouous -Am lkely to reduce chances ofsurvival Why do males from very distant species have similar traits? Competition is costly Sexuaily selected troits Male dung beetiehorms develop at the Expense of eye site Sexual selection helps explain phenomena that do not make evolutionarysense in the context of dealing with other aspeets of the environment • Climate…What is a fundamental niche? O The environmental conditions in which a species can live. The environmental conditions in which a species cannot live. O The environmental conditions or geographic area where a species does live. The environmental conditions or geographic area where a species does not live.
- Reproduction is when new organisms are produced by parents and the parents pass: •genetic information along to their offspring. •their wisdom along to their offspring •basic needs along to their offspring •knowledge along to their offspringWhich is most likely to happen to a population that becomes anatomically isolated from the rest of its species? The entire species will become extinct. The population will become a separate species over time. The population will breed with a different species nearby. O The entire species will continue to have viable offspring together.Two animals of different species would be least likely to O produce fertile offspring (offspring that can make babies together) O eat the same food O have similar body structures O live successfully in the same habitat Quiz saved at e O O O