In the early days of germ theory, contagious diseases were thought to be caused only by fungi or bacteria. in the 1890’s, Dmitri ivanavski filtered extracts from diseased tobacco plants and discovered that the disease could be transmitted to new plants through the filtrate. he hypothesized that something smaller than bacteria or fungi was responsible for the transmission of the disease. which best explains how Ivanovski’s work led to a change in the germ theory? A.) he tried to promote his hypothesis as a law.
B.) he used a new experimental method to test his hypothesis.
C.) he used a more powerful bacterial strain than other scientists had.
D.) he obtained results that confirmed what other scientists were thinking.

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

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

i think the answer is c hope this