What are some ways that good bacteria the ecosystem?

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade

Which survival need shortage would most affect articular cartilage's ability to rebound after joint compression, and why does it have this effect? which survival need shortage would most affect articular cartilage's ability to rebound after joint compression, and why does it have this effect? nutrients, since the majority of cartilage is made out of polysaccharide glycosaminoglycans (gags). water, since it makes up to 80% of cartilage's content and cushion articular bone surfaces. normal body temperature, since higher temperatures would slow down necessary biochemical reactions. oxygen, since cartilage cells receive this gas directly from nearby blood vessels?

Utilizando-se duas lâminas de microscopia, foi colocada uma gota de sangue humano em cada uma delas. a cada gota foi juntada igual quantidade de soro anti-a na primeira e soro anti-b na segunda. após a mistura do sangue com os respectivos soros, foi observada aglutinaç? o nas duas lâminas. a partir desses dados podemos afirmar que o indivíduo, quanto aos grupos sanguíneos abo, é: escolha uma: a. grupo b. b. grupo ab. c. possui dois tipos de anticorpo no plasma. d. possui apenas um tipo de anticorpo no plasma. e. grupo a.