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Aleonysh [2.5K]
3 years ago
13

If a dam is removed, the river and estuary ecosystem will recover A True B False

Biology
2 answers:
Phantasy [73]3 years ago
7 0
Anwser: true
explanation:
Novay_Z [31]3 years ago
4 0

Answer:

true

Explanation:

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lakkis [162]
A: Homeostasis
Reason: cell membrane has nothing to do with question and C and D are terms for sugars
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Why is death by predator right then death by starvation
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Because you don't just die slowly you die more fast when you are ate. 
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Which polymer
amm1812
It’s actually bacterial DNA
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This is also due today! Please help :(
serg [7]

Answer:

For the cardboard column the 4 u DIDNT answer in order r Y Y N N

And for the Topaz column the ones in order that u DIDN'T answer are N Y Y

Explanation:

Cardboard is a solid and is inorganic but not naturally occurring or a mineral.

Topaz is not inorganic but is naturally occurring is a crystalline structure and is a mineral

4 0
3 years ago
1.) You are studying P120, a protein of 120 KDa that is continuously synthesized in eukaryotic cells. Its cellular concentration
irina1246 [14]

Answer:

1. P120 is degraded in the 26S proteasome

2. The 26S proteasome has a major role in protein degradation and is critical for protein homeostasis

3. Cell cycle and DNA replication are cellular processes regulated by the Ras and NFkB pathways

Explanation:

The proliferation-associated nucleolar protein (p120) is a protein known to be expressed during the interphase of the cell cycle, specifically in G1 and early S phase, where any problem with DNA replication trigger a checkpoint, i.e., a molecular cascade of signaling events that suspend DNA replication until the problem is resolved. In mammalian cells, the 26S proteasome is responsible for catalyzing protein degradation of about 80% (or even more) of their proteins. The 26S proteasome acts to degrade rapidly misfolded and regulatory proteins involved in the cell cycle, thereby having a major role in protein homeostasis and in the control of cellular processes. It is for that reason that inhibitors that block 26S proteasome function have shown to be useful as therapeutic agents in diseases associated with the failure of protein degradation mechanisms (e.g., multiple myeloma). The NF-κB are highly conserved transcription factors capable of regulating different cellular processes including, among others, cellular growth, inflammatory responses and apoptosis. Moreover, the MAPK/ERK pathway is able to transduce different signals received on the cell surface to the nucleus. The MAPK/ERK pathway is activated when a singling molecule binds to a cell receptor which triggers a signaling cascade that ends when a transcription factor induces the expression of target genes, ultimately producing a response in the cell (for example, the progression through the cell cycle).

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3 years ago
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