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iogann1982 [59]
3 years ago
9

The human it’s only made up of a few kind of cells. TRUE OR FALSE.

Biology
1 answer:
LiRa [457]3 years ago
4 0
False we are made out of A lot of different Troyes of cells
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A mutation occurs that leads to
ololo11 [35]

Answer:

The sickle-cell allele is widely known as a variant that causes red blood cells to be deformed into a sickle shape when deoxygenated in AS heterozygotes, in which A indicates the non-mutant form of the β-globin gene, and also provides resistance to malaria in AS heterozygotes.

Explanation:

I hope this helps:)

8 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
Define tissue and explain where it falls in the hierarchy of structural organization
Aliun [14]
<span>The tissue is a group of structurally and functionally similar cells and their extracellular matrix. Grouping of those similar cells enables them to carry out a specific function. In the hierarchy of structural organisation tissue is level between cells and a complete organ. Functional grouping together of multiple tissues forms an organ.</span>
6 0
3 years ago
A dodder plant wraps itself around a potato plant. The dodder then uses its root system to obtain water and Nutrients from the p
Alenkinab [10]

Answer: The question is not complete, here are the options.

Which statements best describe this scenario? Check all that apply.

A. The potato plant is parasitic.

B. The dodder plant is parasitic.

C. The potato plant will grow stronger.

D.The potato plant stays alive because of

E. The dodder plant stays alive because of the potato plant.

The correct options are A and E.

Explanation:

This is because dodder plant is a parasitic plants that survive and live on the host plants there by causing harm or destroying the host because it survive on the resources needed for the host survival. Dodder plants twine around the potatoes and obtain nutrients and water from the potatoes through it root system.

3 0
2 years ago
Read 2 more answers
Herbicides are being used to kill weeds in a nearby field. The plants absorb the herbicides from the soil. Which organelle in th
stiks02 [169]
The organelle in the plant that will most likely store the absorbed herbicide waste is the vacuole. Vacuoles act as storage bubbles in plant cells. They could store various materials such as food or nutrients to help the plant survive. It can also store waste materials to prevent them from contaminating the entire cell.
5 0
2 years ago
Read 2 more answers
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