Question

Что такое естественный отбор какие формы естественного отбора вы знаете

Answer 1

Естественный отбор-это борьба за существование
Формы:
Движущий-отклонение от нормы ведет к появлению преимуществ(то есть к развитию)
Стабилизирующий-отклонения от норм ведут к ухудшению ситуации по отношению к особям придерживающихся средней нормы.
Дизруптивный-отклонения от стандартов в любую стороны скажутся лучше ,чем придерживание стандартов.
Это скорее не определения(ты их и так можешь найти в Вики,а объяснение им)

Answer 2

Формы-
1 стабилизирующий
2 движущий
3 дизруптивный

Естественный отбор - результат борьбы за существование.

Answer 3

What is Natural Selection and What Forms of Natural Selection Do You Know?

Natural selection is a key mechanism of evolution, first proposed by Charles Darwin, which describes how species evolve and adapt to their environment over time. It is the process by which organisms better adapted to their environment tend to survive and produce more offspring. This leads to the perpetuation of favorable traits in a population and the elimination of unfavorable traits.

There are several forms of natural selection, including:

1. Stabilizing Selection: This form of natural selection favors the average individuals in a population, leading to a reduction in genetic diversity as the population stabilizes on a particular trait value. This occurs when the environment is stable and consistent.

2. Directional Selection: In this form of natural selection, the environment favors individuals that display a more extreme form of a trait, leading to a shift in the population towards that extreme. This can occur in response to environmental changes or the introduction of new predators or prey.

3. Disruptive Selection: Disruptive selection favors individuals at both extremes of a trait, leading to the elimination of intermediate phenotypes. This can occur in patchy environments where different traits are favored in different parts of the habitat.

These different forms of natural selection play a crucial role in shaping the genetic makeup of populations over time, leading to the diversity of life we see today.