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3 years ago

Does bacteria show sensitivity ?

1 answer:

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Search results: Many bacteria are resistant to common antibiotics. This means that the drug can't kill the bacteria. Sensitivity analysis is a useful tool to help quickly determine if bacteria are resistant to certain drugs.

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Christie's doctor recommends that she eat 40 grams of protein a day. She's already consumed 50% of her protein recommendation fo

tia_tia [17]

Answer: The options are not given. The options are;

A. 1 B. 3 C. 4 D. 6

The answer is 4 which is option C.

Explanation:

Protein recommendations is the amount of daily required dietary proteins for a person base in its weight.

Christie's Doctor recommend 40grams of dietary protein and she has already consumed 50% of it. This meant that she has consumed about 20 grams of the required dietary protein and she needed additional protein source to complete her daily requirements. Therefore, Christie needs additional four servings of snacks to meet her daily protein recommendations.

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3 years ago

What evidence supports Hess's theory of seafloor spreading? Check all that apply.

Zarrin [17]

The direction iron in ocean rocks points

The new crust, formed at constructive/divergent boundary (regarding tectonic plate movement), has band-like patterns that orient in different directions (in alignment with earth's magnetic fields) and visible on the surface. This shows that it is newly made crust made from new magma.

Explanation:

These bands are firmed when the iron minerals in magma orient themselves with the earth's magnetic field before the magma cols into rock and lock the minerals permanently in position. This magma upwells from the mantle to fill the void made when the tectonic plates are moving away from each other.

The earth's magnetic field on the other hand is dynamic. Its angle increases gradually from the true north or south and then flips orientation over several hundred years. The iron minerals therefore will align differently depending on the orientation of the earths magnetic field at the time. This is why the new crust has band-like features visible on its surface.

Learn More:

For more on seafloor spreading check out;

brainly.com/question/3616698

#LearnWithBrainly

6 0

3 years ago

Read 2 more answers

If a scientist were to study the organisms in your ecosystem what questions might they ask

aliina [53]

Answer:

I would write a question about relationships between predators and prey of a given ecosystem.

Explanation:

An example question is:

a.) "Draw a predator-prey graph that shows the relationship between lions and zebras."

b.) "Explain the trends of the above graph with regard to increase and decrease of the prey of predators."

I hope that made sense :)

Good luck.

5 0

3 years ago

Read 2 more answers

What are some diseases that can be passed down as genetic traits? list 5 or more/

Oxana [17]

The diseases which can be passes down as genetic traits are known as "Inheritable disease" some examples are:

1) Haemophilia
2) Phenylketonuria
3) Down's Syndrome
4) Turner's Syndrome
5) Klinefelter's Syndrome

Hope this helps!

6 0

3 years ago

Read 2 more answers

1. Suppose the synthesis of an amino acid was accomplished by four enzymes encoded by four genes that formed an operon. Draw a m

vivado [14]

I have attached lac operon model having 4 genes. See attachment for better understanding.

Answer:

The Lac operon is controlled by two signals.

Initiation

Glucose and lactose concentrations control the initiation of transcription of the Lac operon through their effects on the Lac repressor protein and Cap.

Lactose absent (Repression)

When lactose is absent, the Lac repressor binds the Lac operator and shuts off expression of the operon.

Lactose present (Transcription)

Addition of lactose increases the intracellular concentration of a related compound, allolactose. allolactose binds to the Lac repressor, causing it to undergo a conformational change that releases its grip on the operator DNa.

Glucose absent (Repression)

When glucose is absent, cyclic aMp (red triangle) is produced by the cell and Cap binds to DNA.

Glucose present (Transcription)

LacZ, the first gene of the operon, encodes the enzyme b-galactosidase, which breaks down lactose to galactose and glucose.

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3 years ago