Biology, 23.10.2019 17:00 basketball6076
This bacterium derives nutrition by digesting human intestinal contents (in other words, food). humans lacking this bacterium have no measurable reproductive advantage or disadvantage relative to humans who harbor this bacterium. consequently, the bacterium can be properly described as which of the following? 1. symbiont 2. endotoxin 3. mutualist 4. commensal
1 and 2
4 only
2 and 3
2 and 4
1 and 4
Answers: 3
Biology, 22.06.2019 23:30
Viral infections can be contracted only from direct contact with someone infected true or false
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Biology, 23.06.2019 03:20
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. apĂłs a mistura do sangue com os respectivos soros, foi observada aglutinaç? o nas duas lâminas. a partir desses dados podemos afirmar que o indivĂduo, quanto aos grupos sanguĂneos abo, Ă©: 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.
Answers: 1
Biology, 23.06.2019 03:40
Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowing extra gills, for oxygen extraction the ability to grow larger extra fat, for warmth
Answers: 3
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