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guapka [62]
3 years ago
14

Scientific consensus supports the idea that living organisms require oxygen. Then, a scientist discovers a type of bacteria that

metabolizes sulfur instead of oxygen, and thus survives in environments without oxygen. The scientist concludes that a diverse group of many different organisms could live in an oxygen-free environment. Why should are some scientists skeptical of the scientist’s results and conclusion?
Biology
2 answers:
son4ous [18]3 years ago
7 0
It survives by under water volcanoes like the marianas trench. :)
shtirl [24]3 years ago
3 0

Answer: D. The conclusion needs to be supported by more evidence.

Explanation: I did the quiz

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The vatican archives maintain a vault where century's worth of old documents are stored in very high n2 levels to prevent oxidat
Vinil7 [7]

The Vatican archives stores multiple precious documents and books of the world. These old documents dating hundred of years are kept in high nitrogen levels, in order to prevent the oxidation of the paper (papyrus). The presence of the high level of inert nitrogen in the air in the archives prevents any kind of damage that may caused to the paper or the ink on those documents. This high level of nitrogen, however, may affect the health of the individual by decreasing the oxygen levels in the body.

Hence, the answer is 'the oxygen level will be decreased in the body'.

7 0
4 years ago
1. The bronchi and alveoli organs are part of which organ system?
Anastaziya [24]

Answer:

respiratory system

Explanation:

The bronchi become smaller the closer they get to the lung tissue and are then considered bronchioles. These passageways then evolve into tiny air sacs called alveoli, which is the site of oxygen and carbon dioxide exchange in the respiratory system.

4 0
3 years ago
Why are there limited levels of consumers? For example, apex predators are usually tertiary or quaternary consumers. Why don’t w
yuradex [85]

energy is lost at each level of consumption so it’s simply not efficient to be a 5th + level consumer

8 0
3 years ago
Which of the following statements are true. Chloroplasts are the sites for photosynthesis. Mitochondria specialize in oxidative
Leokris [45]

Answer:

  1. Chloroplasts are the sites for photosynthesis
  2. Mitochondria specialize in oxidative metabolism
  3. Ribosomes are involved in protein synthesis

6 0
3 years ago
Que signifie ADN et comment on le prouve?
irakobra [83]

Answer:

<h3>Qu'est-ce que l'ADN ?</h3>

L'ADN (acide désoxyribonucléique) est un type d'acide nucléique qui se distingue par le stockage de l'information génétique de la grande majorité des êtres vivants. Cette molécule est formée de nucléotides et a généralement la forme d'une double hélice.

Il est nécessaire de prélever des échantillons de certains fluides corporels qui peuvent être du sang, de la salive, des ongles, des cheveux ou du sperme. À l'aide de techniques de laboratoire sophistiquées, l'ADN des échantillons est isolé, puis une cartographie est effectuée, ce qui est fait par des équipements appelés "Séquenceurs d'ADN".

Pour le prouver, normalement le rapport d'un examen ADN apporte quels gènes et chromosomes ont été étudiés et l'analyse du généticien à leur sujet. Les résultats sont présentés dans des rapports simples et clairs. Dans les examens de paternité, le résultat est toujours comparatif.

J'espère t'avoir aidé, bonnes études !

7 0
1 year ago
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