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mihalych1998 [28]
3 years ago
9

Can a theory be disproven or changed ?

Biology
1 answer:
frez [133]3 years ago
7 0
A theory remains a theory.
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A geologist discovers a sample of fine-grained rock made up of very small crystals. Based on its physical appearance, what can t
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D. It formed from magma that cooled quickly

Explanation:

From several experiments, geologists have come to terms with the fact that when magma cools rapidly, it does not give room for large and big sized crystals to form. Instead, tiny, little crystals would be formed.

For example, obsidian and most volcanic rocks.

When a magma has enough time to cool and solidify, we see very big crystals of minerals in them.

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3 years ago
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In order to impact cell differentiation and proliferation, the insulin receptor substrate 1 must be phosphorylated on a ________
Olin [163]

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on a tyrosine residue

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Explanation:

The insulin receptor substrate-1 (IRS1) is a signaling protein that can be phosphorylated on multiple tyrosine and serine/threonine residues. IRS1 contains several conserved domains including a pleckstrin (PH) domain and a PTB domain involved in protein phosphorylation and ligand binding. In the first place, IRS1 is phosphorylated on a tyrosine residue, and then IRS1 binds to insulin or the insulin-like growth factor-1 (IGF-1), thereby activating transduction pathways such as, for example, MAPK/ERK. Moreover, RS1 is also phosphorylated on serine residues, thereby triggering opposite effects in insulin-associated signaling.

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Drag each label to the correct location on the image.
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1)herds young in to center of group

2)produces many

offspring at once to

protect against high

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until environmental

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for growth

Explanation:

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The expected symptom would be B. numbness
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