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Which of the traits is altered by variations in the environment?
Blood type
How helpful variations accumulate in a specie over time?
Helpful variations accumulate in a species over time by selecting those traits that allow it to better live in the environment it is in.
The vast variety of different traits found in humans results from?
The vast variety of different traits found in humans is a result of genetic diversity. Each person inherits a unique combination of genes from their parents, leading to variations in physical characteristics, behaviors, and abilities among individuals. Additionally, environmental factors and interactions between genes and the environment also contribute to the diversity of traits in humans.
What is the controversy about the role that biology and environment play in determining psychological traits in humans?
Nature versus nurture.
What is the process by which of the best suited individuals can survive in their environment?
In science, this sometimes called the survival of the fittest or natural selection.If all individuals in a species are not exactly clones of each other but have small variations in the genes (traits), some will do better when the environment changes. These traits will be 'favored' over other traits.
What determines which traits in a population are favorable and which are unfavorable?
Traits in a population are determined to be favorable or unfavorable based on how they affect an individual's ability to survive and reproduce in a given environment. Favorable traits increase an individual's chances of survival and reproduction, while unfavorable traits decrease these chances. Natural selection acts on these traits, leading to the evolution of populations over time.
What two traits altered or changed by variations in environment?
If an animal is in a cold environment, it may grow thick skin or long hair. It may also produce other specialized organs for surviving in the cold weather. ex. a long nose to warm its mouth. Likewise, if an animal lives in a warm environment, then it may have very thin skin or short/no hair. Plus, it may be better adapted to keeping water.
What are genetic traits?
Genetic traits are variations of features passed on to offspring from there parents.
Traits selected by humans instead of the environment?
Physical appearance, behavior, and specific skills are traits that humans often select for in breeding programs or domestication processes rather than relying on natural selection. This can lead to a rapid change in these traits over generations due to intentional selection pressures imposed by humans.
How do mutation or variations in organisms and selection cause evolution to happen?
Mutations or variations in organisms create genetic diversity, giving rise to individuals with different traits. Natural selection then acts on these traits, favoring those that provide a reproductive advantage in a particular environment. Over time, this process leads to the accumulation of advantageous traits in a population, resulting in evolutionary change.
What are four steps of nautral selcetion?
The four steps of natural selection are variation, competition, survival, and reproduction. First, individuals within a population exhibit variations in traits. Second, these variations lead to competition for resources, where some individuals are better suited to survive in their environment. Third, those with advantageous traits are more likely to survive and reproduce, passing these traits to the next generation. Over time, this process results in the population evolving to better adapt to its environment.
Where do variations in traits within a species originate from?
Variations in traits within a species originate from genetic mutations, environmental factors, and natural selection.
