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Leviafan [203]
3 years ago
7

Please help y'all 15 pts!

Biology
1 answer:
PilotLPTM [1.2K]3 years ago
5 0

Answer:

C

Explanation:

Because you see a fish and some leaves, you can conclude that the ocean went away and the trees grew.

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How are bacteria able to regulate their genes by two types of operons?
Aleks04 [339]

Operons are the functional units of transcription and genetic regulation. These are found in bacteria and their viruses where genes coding for functionally related proteins are grouped along the DNA.

The two types of operons are- inducible and repressible.

They regulate the genes as in negative inducible operons, a regulatory repressor protein is bound to the operator. It prevents the transcription of the genes on the operon. If positive inducer is present, it binds to the repressor and changes its conformation so it is unable to bind to the operator.


5 0
3 years ago
Use the correct terms to complete the sentences that explain how the fluid mosaic model of a membrane works.
Ierofanga [76]
<h3>Answer:</h3>

The Fluid Mosaic Model declares that membranes are formed of a Phospholipid Bilayer with several protein molecules drifting about inside it. The ‘Fluid’ section describes how any components of the membrane can run nearby loosely if they are not connected to different components of the cell. The ‘mosaic’ section explains the ‘patchwork’ of proteins that are detected in the Phospholipid Bilayer.

<h3>Explanation:</h3>

There is a lipid bilayer in which the protein molecules are embedded. The lipid bilayer gives fluidity and elasticity to the membrane. Carbohydrates are also found in a cell membrane. The plasma membrane is said to be two-dimensional structure or liquid we can say which does not allow the lateral diffusion of membrane components. The plasma membrane has the texture of vegetable oil at body temperature, because of which the proteins and other substances move across it. That's why the plasma membrane is described as using the fluid-mosaic model.

4 0
3 years ago
Read 2 more answers
On a farm, a group of squirrels collect acorns from an oak tree. Not all the acorns are collected on the ground, the birds can a
krok68 [10]

Answer:

ecosystem

Explanation:

The level of organization shown in the example is "ecosystem" because the example represnts interaction between two different population with acorns on the land.

Ecosystem is defined as the interaction of groups of organisms in biological domain with abiotic enviornment.

The example, groups of organisms include "squirrels and birds" and abiotic enviornment include "acorns" or "nuts".

Hence, the correct option is "ecosystem".

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yKpoI14uk [10]
The answer to your question is choice A)
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3 years ago
2. The mRNA for a well-known secretory protein is isolated and placed in a test tube in the presence of all the substances requi
nikitadnepr [17]

Answer:

Post-transnational adjustment is a significant character of secretory protein which happens during translocation of protein through the endoplasmic reticulum and Golgi bodies. These proteins have some sign arrangement for this translocation and these successions are cut in the wake of moving toward the particular area of the cell.  

If there should arise an occurrence of in vitro amalgamation of the above protein, the protein basically interpreted from the RNA and no cutting of the sign grouping and another succession which are cut in any case during translocation happens. Because of this succession of protein varies from the in vivo protein.

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3 years ago
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