G11 - Biology Q3 - Speciation and Reproductive Isolations and Mode of Speciation

Reproduction

The biological process by which new individual organisms are produced.

Sexual Reproduction

A type of reproduction involving the combination of sex cells from two parents to create offspring.

Asexual Reproduction

Reproduction that produces offspring from a single organism without the need for sex cells.

Speciation

The process by which new species evolve from existing ones.

Biological Species Concept

Defines a species as a group of organisms capable of interbreeding and producing fertile offspring.

Pre-zygotic Isolation Mechanisms

Mechanisms that prevent fertilization between species.

Post-zygotic Isolation Mechanisms

Mechanisms that prevent the development of viable offspring after fertilization.

Behavioral Isolation

Prevents interbreeding due to differences in courtship behaviors.

Mechanical Isolation

Prevents successful interbreeding due to physical differences in reproductive organs.