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True [87]
4 years ago
10

Study the structure of the plant growing on the rock in the image. Based on its structure, to which group does the plant belong?

Biology
1 answer:
Lena [83]4 years ago
4 0

Answer:

moss and or pioneer species

Explanation:

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Please help its 6th grade science
notsponge [240]

Answer:

CAR C

Explanation:

I think

4 0
3 years ago
Desde captar el estimulo hasta efectuar una respuesta, la secuencia que sigue en el impulso nervioso es?
Elan Coil [88]

Answer:

creación de un potencial de acción (despolarización), redistribución de iones a través del soma y finalmente repolarización (estado de reposo)

Explanation:

Las neuronas son células nerviosas capaces de transmitir impulsos en forma de corriente eléctrica. Una neurona está compuesta por dendritas, el soma o cuerpo celular y el axón. Durante la transmisión del impulso nervioso, el estímulo es en primer lugar recibido por las dendritas, recorre el soma y termina en el axón. El impulso nervioso se transmite a través de la neurona mediante un proceso de despolarización. Primero, se produce un aumento de la carga eléctrica en el interior de la membrana neuronal debido al aumento de iones de sodio en el interior celular. A continuación, se produce la redistribución de iones dentro del soma, con lo cual la señal se va transmitiendo a lo largo de la neurona. Finalmente, cuando el impulso ha terminado de recorrer el axón, se produce la repolarización o estado de reposo, donde se produce el restablecimiento de las concentraciones iniciales de iones y la neurona vuelve a su estado inicial.

7 0
3 years ago
Which of these statements describes Earth's atmosphere?
Mandarinka [93]

Hello!

The statement which best describes Earth's atmosphere :

<u>It includes all living and once-living things.</u>

<u />

These include everything from humans to trees.

7 0
2 years ago
Which cell would have most trouble maintaining homeostasis small or large?
avanturin [10]
I’m not 100% sure but I think it’s small
4 0
3 years ago
Which of the following enzymes listed below are responsible for cancer cells ability to prevent aging of the cells and contribut
umka2103 [35]

Answer:

Telomerase

Explanation:

Repetitive regions at the ends of Chromosomes are known as telomeres and these are crucial for chromosomal stability. There is no gene present and they provide protection to internal parts of chromosome. The telomeres are eaten up slowly by ‘DNA REPAIR MECHANISM’ after many division cycles, which is considered as ageing. That why, a cell can divide only certain number of times.

Some cells have ability to express an enzyme telomerase that maintain the length of telomere. The telomerase enzyme contributes to cell immortality by rebuilding the damaged telomere. Thus telomerase enzyme is necessary for cancer initiation and survival of tumor. Telomerase enzyme can make its own DNA by using its RNA as template . It extends the overhang strands of DNA by using a comlementary DNA.

6 0
3 years ago
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