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Luden [163]
2 years ago
12

I NEED HELP!!!! What 4 minerals most commonly found in rocks?

Biology
2 answers:
nataly862011 [7]2 years ago
6 0
This is the correct answer I hoped I help. Click on the photo to see the full thing

Ostrovityanka [42]2 years ago
4 0
Quartz, magnetite, fluorite, and no idea what the last one is
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Which of these can live either with oxygen or without it?
Pepsi [2]
A. facultative anaerobes

Facultative anaerobes, can grow without oxygen but if oxygen is present; then, it will use the oxygen.

Letter B. is harmed when oxygen is present.
Letter C. its life is dependent on the presence of oxygen
Letter D. a virus that is dependent on the lifespan of the bacteria it is attached to. If the bacteria can't survive in oxygen, bacteriophages will die too.
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3 years ago
Veins carry blood ________ the heart.
krok68 [10]
The answer is B.

Veins are blood vessels that carry the blood towards the heart. The Vessels that carry the blood way from the heart is called artery
6 0
2 years ago
How did van helmont reach his conclusion
MissTica

Answer: He grew a willow tree in a weighed amount of soil. After five years, he discovered that the willow tree weighed about 74 kg more than it did at the start. As the weight of the soil had hardly changed, van Helmont concluded that plant growth cannot only be due to minerals from the soil.

5 0
3 years ago
En los alérgicos, a partir del segundo contacto con el alérgeno cuando se produce la reacción alérgica. ¿Cómo podrías explicarlo
dem82 [27]

Answer:

La segunda exposición desencadena la fase de 'respuesta' asociada a la reacción alérgica  

Explanation:

La alergia se puede considerar como una respuesta desmedida del sistema inmune cuando un individuo entra en contacto con ciertas sustancias que son inocuas para la mayoría de la población, pero que en personas alérgicas desencadenan fuertes reacciones de hipersensibilidad. La alergia tiene dos fases conocidas como fase de sensibilización y fase de respuesta. La primera fase de sensibilización es donde el individuo entra en contacto con los 'antígenos' del alérgeno, lo cual provoca que el individuo genere anticuerpos IgE los cuales combaten al alérgeno (el sistema inmune considera que esta sustancia es potencialmente dañina), mediante la generación de anticuerpos de IgE que se unen a receptores de células del sistema inmune (eosinófilos, basófilos y mastocitos). La segunda fase de respuesta se produce cuando el individuo entra de nuevo en contacto con el alérgeno. Durante el segundo contacto, los antígenos del alérgeno interactúan con anticuerpos específicos de IgE que se encuentran sobre la superficie de células del sistema inmune, desencadenando la degranulación de estas células (mastocitos) y la consecuente liberación de mediadores químicos de la alergia tales como, por ejemplo, histamina, los cuales son responsable de los síntomas típicos de la alergia (tos, estornudos, picor, enrojecimiento de ojos, urticaria, inflamación, etc.).

4 0
2 years ago
The stage of the cell cycle during which two new and fully functional nuclei are formed is called ________.
Sliva [168]

Answer:

karyoninesis

(that's what I think you asking)

5 0
3 years ago
Read 2 more answers
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