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GalinKa [24]
2 years ago
7

Which of the following characterizes the Domain Bacteria?

Biology
1 answer:
crimeas [40]2 years ago
6 0

Answer:

C)

Explanation:

Bacteria are prokaryotic, which means they (generally) don't have organelles or a nuclear envelope around their nucleus.  They have ester linkages in the phospholipids in their cell membranes, while archea, which are also prokaryotic, have ether linkages.  Ether linkages are more chemically stable than ester linkages, and since archea live in extreme environments this is helpful.  

Bacteria are not multicellular and do not have organelles (complex cellular structures) besides ribosomes.

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Precise measurements are important for scientific accuracy. Use the game to explain why precise measurement of reactants is impo
lys-0071 [83]

Answer: Precise measurements are important for Scientific Accuracy in order to get correct results

Explanation:

Precision is how close the Agreement is between repeated measurements under the same conditions. For example, if a measured value 36.7cm has three digits, or significant figures. Significant figures indicate the precision of a measuring tool that was used to measure a value

Accuracy is how close a measurement is to the correct value for that measurement.

When taking scientific measurements it is very important to be both precise and accurate. Bad equipment, human error can give inaccurate results.

5 0
2 years ago
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A 100 kg box is initially at rest on a level surface. One 10 N force acts on the box , directed toward the right. A second 10 N
Paladinen [302]

Answer:

The box will not move because balanced forces are acting on it.

Explanation:

According to Newton's first law of motion, an object will remain in its state of rest or motion along a straight line unless acted upon by an unbalanced force.

An unbalanced force is an individual force acting on any side of an object which is not balanced by a force of equal magnitude acting in the opposite direction.

From the image, two forces of equal magnitude of 10 N are pulling the 100 kg box in opposite directions. Since the two forces, 10 N each are pulling the object in opposite directions, they are balanced forces. Therefore, the box will not move because balanced forces are acting on it.

5 0
2 years ago
Which factors affect the rate of deposition? Check all that apply. color of the sediment density of the sediment size of the sed
MakcuM [25]

Answer:

density of the sediment

size of the sediment

velocity of the agent of erosion

Explanation:

Deposition can be defined as the process of building up of sediment from chemical processes because the forces which are responsible for transporting Sediment are no longer sufficient enough to overcome the forces of gravity which is why density of the sediment, size of the sediment as well as velocity of the agent of erosion tend to affect

The rate of deposition due to the fact that

Larger and denser particles are heavier and land first before, less dense particles which cause round pieces of sediment settle more quickly than flat pieces .

Hence,density of the sediment,size of the sediment as well as velocity of the agent of erosion will often affect the rate deposition.

6 0
2 years ago
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After ingestion of a food particle, pH changes and enzymes contributed by the ________ will digest and hydrolyze the ingested pa
harkovskaia [24]

Answer:

as the question is incomplete i have added the link to full question in ask for detail section.

b) Lysosome

Explanation:

After ingestion of a food particle, pH changes and enzymes contributed by the __Lysosome__ will digest and hydrolyze the ingested particle in the phagocytic vacuole.

7 0
2 years ago
MicroRNA (miRNA) production occurs in several steps. Arrange the statements describing the production and function of miRNAs in
zmey [24]

Answer:

The miRNAs act as post-transcriptional silencers, as they are similar to specific mRNAs and regulate their stability and translation. They are small endogenous non-coding ribonucleic acid (RNA) molecules, with about 22 nucleotides, which act as regulators of gene expression in plants and animals, at the post-transcriptional level through the cleavage of a target messenger RNA (mRNA) or repression of translation.

In general, most miRNA genes are transcribed by RNA polymerase II in the nucleus in primary miRNAs (pri-miRNAs). Individually, a pri-miRNA can produce a single miRNA or contain groups of two or more miRNAs that are processed from a common primary transcript. These long pri-miRNA are cleaved by a complex comprising the double-stranded RNAse III enzyme (DROSHA) and its essential cofactor, the binding protein DGCR8 (DiGeorge Syndrome Critical Region 8 protein) in mammals. DROSHA contains two domains of RNAse III, each of which cleaves a strand of the RNA resulting in the precursor microRNA (pre-miRNA) with about 70 base pairs, which contains a double-stranded stretch and a single-stranded loop, forming a structure in clamp. The pre-miRNA is exported to the cytoplasm by the protein exportin-5 (XPO-5), where it is cleaved by DICER1, an RNAse III that assesses the 3 'and 5' ends of the pre-miRNA, generating a mature miRNA with about 22 nucleotides. The processing of pre-miRNA by Dicer promotes the unfolding of the RNA duplex in the form of a clamp. The position in the formation of the clamp can also influence the choice of tape.

Explanation:

7 0
2 years ago
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