What is an example of natural selection happening today?

One example of recent natural selection in humans involves the ability to tolerate the sugar, lactose, in milk. In most parts of the world, adults are unable to drink milk because their body switches off the intestinal production of lactase, an enzyme that digests the sugar in the milk, after weaning.

How can natural selection be bad?

If negative selection is too strong for the whole population, extinction will occur, unless the population is rescued in time. Extinction can occur if the negative selection considered is “hard” selection, which actually reduces the number of surviving offspring that are produced.

What are examples of some changes in genetic traits that have occurred through natural selection?

Examples of Natural Selection:

• Skeletal Adaptations. Giraffes, lizards, and many other known species adapted to their environments through genetic changes to their skeletons.
• Coloration. Many species have been studied who’ve adapted to their environment through adaptions in coloring.
• Bacteria.
• Physiological.

How are humans interfering with natural selection?

If climate change is caused by humans, then no organisms can avoid selection resulting from human actions. Climate change impacts every corner of the globe. And species evolve in turn. Humans created the selective force (antibiotics) and applied them to microorganisms.

Is one of the best example of natural selection?

Examples of Natural Selection Examples in Animals During times of drought, the finches with the larger beaks survived better than those with smaller beaks. Since the environment supports both types of beaks, both remain in the population. Peacock females pick their mate according to the male’s tail.

What is a consequence of natural selection quizlet?

Natural selection is one mechanism that drives evolution. It occurs when organisms possess heritable traits that enhance survival. These organisms reproduce more frequently than members of the population lacking such traits because individuals with such adaptations pass their beneficial traits to future generations.

What are the impacts of natural selection?

Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.