Answer:
The correct answer is ''post-zygotic barrier to reproduction''
Explanation:
Biological barriers prevent the exchange of genes between two or more populations, a postzygotic reproductive barrier reduces the survival or reproduction of hybrid offspring. In hybrid non-viability there is low survival of the hybrid, especially during embryonic stages. On the other hand, the sterility of the hybrid occurs when the fertilized egg develops into a healthy but sterile adult. Segregation of aneuploid gametes during meiosis, different gene associations occur on the chromosomes of the parents.
Answer:
Os vegetais são vegetais cuja cor predominante é o verde, porém o uso popular tende a estender seu significado a outras partes comestíveis das plantas, como folhas, inflorescências e caules.
Answer:
the mechanism that darwin proposed for evolution is natural selection . because resources are limited in natural organisms with heritable traits that favour survival and reproduction will tend to more offspring than their peers ,causing the traits to increase in frequency over generation .
Explanation:
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It will be D) the sun and E) the Planet Mars
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Answer:
Only one set of genes, usually in a single-stranded loop. Lack sexual reproduction. Several chemical types of cell walls. Lack organelles such as centrioles, eukaryotic flagella, cilia, mitochondria, and chloroplasts.
Explanation: