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Ghella [55]
3 years ago
8

HELLO ASAP ITS FOR A TEST

Biology
2 answers:
Brut [27]3 years ago
8 0
No she’s wrong it’s the second one. Floodplain are formed by deposition on the inside of the river meander
noname [10]3 years ago
4 0

Answer:

the answer is U shaped valley

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When electrons flow along the electron transport chains of mitochondria
IgorC [24]

Answer: a. the ph of the matrix increases

Explanation:

NADH and FADH2 molecules resulting from the Krebs cycle (by reducing respectively NAD + and Electron and proton carriers (e-  and H +), are oxidized in the final reactions of cellular respiration, and the electrons and protons are captured by oxygen, the final acceptor. The flow of electrons along the respiratory chain causes the active transport of protons along the chain through the inner membrane of the mitochondria. Protons return to the mitochondrial matrix by diffusion - chemiosmosis - and at the same time, ADP undergoes oxidative phosphorylation forming ATP. Because of this movement of protons inside the matrix, the ph of the matrix increases.

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3 years ago
Which best describes the purpose of identifying the lizard
emmasim [6.3K]

Answer:

for classifying organisms and studying biodiversity

Explanation:

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2 years ago
Chinchillas
Yuliya22 [10]
The answer is : C.) Chinchillas are used as models for this research because their hearing ability is similar to that of a human. Hope I helped ;)
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3 years ago
he __________ system works with the nervous system to protect important organs such as the brain and spinal cord. A) skeletal B)
Yakvenalex [24]
The skeletal system since the brain is apart of the skeletal system.
3 0
3 years ago
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Which methods is utilized by eukaryotes to control their gene expression that is different from the type of control found in bac
Damm [24]

Answer:

Method which is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria is control of both RNA splicing and chromatin remodeling.

Explanation:

There is a difference in the gene expression of the prokaryotes and eukaryotes. In prokaryotes, transcription and translation occur simultaneously in the cytoplasm, and gene regulation occurs at the transcriptional level. In eukaryotes gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.

Prokaryotic cells can only regulate gene expression by controlling the amount of transcription. As eukaryotic cells evolved, the complexity of the control of gene expression increased. For example, with the evolution of eukaryotic cells came compartmentalization of important cellular components and cellular processes. A nuclear region that contains the DNA was formed. Transcription and translation were physically separated into two different cellular compartments. It therefore became possible to control gene expression by regulating transcription in the nucleus, and also by controlling the RNA levels and protein translation present outside the nucleus.

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