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sdas [7]
3 years ago
12

What is the valence of oxygen?

Biology
1 answer:
quester [9]3 years ago
3 0
Valence of oxygen is negative two.

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Causes water molecules to rise up from the roots eventually reaching the leaves?
torisob [31]

Answer:

✔ Xylem ** is the correct answer

Explanation:

Xylem is the water transporting tissue in plants

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3 years ago
Why were fruit flies a convenient organism for morgan to use for genetic experiments?
nevsk [136]
Fruit flies produce offspring relatively fast and have specific traits, such as eye color and body color/shape. They are easy to observe and their traits are easily traced throughout the next generations.
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Suggest an intracellular regulatory molecule (from your text) that growth factors might stimulate to control cell division. Plea
vlabodo [156]

Answer:

E2F transcription factors  

Explanation:

The E2F transcription factors (TFs) encode intracellular factors associated with the control of the cell cycle. E2F are TFs that bind to promoter consensus sequences in order to activate transcription. These TFs control the expression of target genes involved in cell proliferation including, among others, genes for DNA replication and mitotic activation. Moreover, the E2F proteins also may act as a link between cell fate and the cell cycle. The retinoblastoma (Rb) is a protein that modulates the activity of the E2F family of TFs, and it has been shown that the Rb/E2F pathway is a key molecular mechanism associated with cell proliferation.

7 0
3 years ago
What is an appropriate way to analyze
Anna11 [10]

Answer:

option A IS CORRECT

Explanation:

creating a graph is an appropriate way to analyze the result of an experiment

5 0
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In what organelle (cell component) does cellular respiration take place?
ollegr [7]

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Cellular respiration takes place in mitochondria of a cell, hence it is also known as power house of cell , because it gives us energy in the form of ATP molecule .

3 0
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