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Rudik [331]
2 years ago
10

Griffiths (1928) mixed heat-killed ‘s' bacteria with ‘r' bacteria and injected a mouse with both types of bacteria. as a result,

the mouse died and griffiths obtained living ‘s' bacteria from the dead mouse. how can you explain this phenomenon?
Biology
1 answer:
Talja [164]2 years ago
8 0
The surviving R strain transformed into a living S strain.
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When hydrocarbon fuels are brined

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Why is it important for ectoparasites to stay undetected by their host?
melomori [17]

Ectoparasites cause diseases in humans and animals, so to know the format of detecting it we need to know that ......

<h3>Ectoparasite</h3><h3 />

Parasitism is defined as an interaction where a parasitic organism obtains resources through one or several host individuals, causing damage and reducing its fitness. The endoparasite is a type of parasite that lives inside the host's body (from the Greek endos, inside), while the ectoparasite is one that lives on the external surface of its host (from the Greek ectos, outside). Thus, the ectoparasite does not need to lodge inside the host organism to feed, presenting a partial metabolic dependence. Some examples of ectoparasites are:

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  • Ticks
  • and Fleas.

<h3>Strategies of ectoparasites</h3>

Each parasite has particular strategies and adaptations used to extract nutrients from their hosts. In ectoparasites these adaptations can often be seen as changes in the oral apparatus, allowing them to penetrate the skin surface and feed on the host's nutrients. Scabies is a skin disease caused by the ectoparasite <em>Sarcoptes scabiei</em>. In order to obtain nutrients for its survival, the parasitic organism burrows into the skin of the host, unlike ectoparasites such as the louse, which pierce the surface and only insert its mouthparts to extract food.

<u>With this information we can say that the </u><u>ectoparasites </u><u>adapt to the host so that it is </u><u>not noticed </u><u>and for a better </u><u>absorption of nutrients </u><u>from the host, they remain </u><u>undetectable</u><u> not to be </u><u>removed</u><u>, so that they are not </u><u>disconnected</u><u> from their </u><u>food source</u><u> as they are in the vast majority visible to the eye.</u>

Learn more about diseases in brainly.com/question/943439?referrer=searchResults

7 0
2 years ago
Strep Throat, Anthrax, and Tetanus are examples of disease-causing bacteria called
romanna [79]

Answer: These are known as <u>pathogens.</u>

Additional:

- Anthrax is caused by <u>Bacillus anthracis</u>

- Strep throat is caused by <u>Streptococcus pyogenes</u>

- Tetanus is caused by <u>Clostridium tetan</u>

<u></u>

I hope my answer helped ⛄️

5 0
10 months ago
Read 2 more answers
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