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fredd [130]
3 years ago
11

¿Cuál es la propiedad química de un lápiz?​

Biology
1 answer:
musickatia [10]3 years ago
3 0

Answer:

Los lápices, el primer instrumento de escritura que recibimos, están hechos de grafito asociado a polímeros. ... Y, para que no haya errores frustrantes, gracias a las propiedades elásticas del butadieno las gomas de borrar eliminan del papel las partículas de grafito.

Explanation:

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Podaj 2 funkcje zmysłu węchu u czlowieka
tatiyna

Answer:

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Explanation:

6 0
3 years ago
Read 2 more answers
Describe the interactions between transcription factors and promoter sites that lead to the initiation of transcription. Predict
LekaFEV [45]

Answer:

A genetic sequence, the TATA box, is a transcriptions start site and initiates transcription through the formation of RNA polymerase. Negative regulation may inhibit the initiation of transcription and/or repress gene expression.

Explanation:

proteins called transcription factors bind to the TATA box, this triggers RNA polymerase to start synthesizing RNA to DNA

3 0
3 years ago
Which organelle stores the information that determines an individual plant leaf shape.
sladkih [1.3K]

Genetic relationships, gene expression patterns, microRNAs, and active hormonal controls all contribute to the genetic foundation of leaf form. organelle 1 is large vacuole, 2nd organelle is mitochondria, organelle 3 is nucleus and organelle 4 is cell wall.

The size of the cell and the number of cells determine the size of the leaf. Plant hormones, growth-regulating factors (GRFs), TEOSINTE BRANCHED1/CYCLOIDEA/PCF (TCP), WUSCHEL RELATED HOMEOBOX (WOX), and other regulatory factors control cell expansion and differentiation [3,4].

Rough E.R. makes and transports substances through the cell and Smooth E.R. does not have ribosomes; Ribosome make protein for the cell.

For more details regarding cell wall, visit

brainly.com/question/10945910

#SPJ2

5 0
1 year ago
Describe the changes that a broken bone undergoes as it is healing.
Alex_Xolod [135]
<span>When a bone breaks your body immediately begins working to heal it. Within the first hours of a fracture a blood clot forms around the break and special cells call phagocytes begin cleaning germs from the bone fragments. Then, a soft callus composed of collagen is created around the break. Next, a hard callus forms as osteoblast cells work to create new bone to aid in the reconstruction process. After all is said and done the bone is remodeled by cells called osteoclasts. The bone will be completely rebuilt in 3-9 years.</span>
5 0
3 years ago
PLEASE ASAP NO LINKS OR SPAMS OR THEUY WILL BE REPORTED ( GIVING BRAINLIEST FOR CORRECT ANSWER
Gnesinka [82]

Explanation:

if we will grow huge number of trees and other plants the oxygen level will increase because tree produce oxygen during the process of photosynthesis and if one gases level will increase then other will also decrease...

hope it helps

3 0
3 years ago
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