Answer: It's not blocked
https://www.khanacademy.org/science/high-school-biology/hs-human-body-systems/hs-body-structure-and-homeostasis/a/tissues-organs-organ-systems
The endergonic is positive
Artificial selection or selective breeding is a process of selecting the “advantageous” characteristics from the plants or animals by humans and using them for breeding. There are many advantages of artificial selection:
• More agricultural products, gaining higher profit (for example more milk from cow, or more fruit)
• Elimination of diseases by identifying the plants/animals with disease
• Production of superior breed.
On the other hand, negative effects might also occur, so the disadvantages of artificial selection are:
• Genetic mutations
• Loss of genes
• Diseases
All of these negative impacts are connected and often arise from the breeding of desirable organisms.
The human activities directly or indirectly affect the nature. The deforestation and the removal of the vegetation for the purpose of development or timber, the land is exposed to the dangers of the landslide. The tress, plants and other vegetation keeps the soil in place with the help of their roots. The soil erosion is prevented by the trees, but the cutting down of them by the humans increases erosion and hence, the risk of landslide.
Cell membranes enable organisms to maintain homeostasis by regulating the materials that may enter or leave a cell.