Plant cells and bacteria both have cell walls. Many antibiotics work by breaking down the proteins that make up the cell wall, so bacteria become vulnerable to the human body's immune system. A. Plant cells are less complex than bacterial cells, and their cell walls are made of enzymes which prevent the antibiotic from breaking down the plant cell walls.

B. Plant cells are prokaryotic, and their cell walls are made of lipids which prevent the antibiotics from breaking down the plant cell walls.

C. Plant cells are simple cells, and their cell walls are made of carbohydrates which prevent the antibiotics from breaking down the plant cell walls.

D. Plant cells are eukaryotic, and their cell walls are made of different proteins which prevent the antibiotics from breaking down the plant cell walls.

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increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

the tricuspid valve is present between right atrium and right ventricle

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.