Microbes that colonize the skin need to be resistant to salt and ph.

1 answer:

8 0

<span>The correct answer is C).high salt and low pH. Sweat glands pump out saline solution as a means of cooling the body as well as removing waste (sweat). Human skin typically has a pH of 5.5-5.9 with major issues at higher or lower pH (e.g., eczema)</span>

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The phenotype ratio would be 25% each for widow's peak and freckles, widow's peak without freckles, straight hairline with freckles, and straight hairline without freckles.

<h3>Dihybrid crossing</h3>

Genotype of the heterozygous parent: HhFf

Genotype of the other parent = hhff

Crossing the two parents:

HhFf = 1/4 = Widow's peak, freckles

Hhff = 1/4 = Widow's peak, no freckles

hhFf = 1/4 = straight hairline, freckles

hhff = 1/4 = straight hairline, no freckles.

More on dihybrid crossing can be found here:brainly.com/question/1185199

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The type of microscope which would be the best tool to use to view the surface of a bacterial cell is a Scanning electron microscope.

This is because it can be used to look at the surface of objects at high resolution. Maximum magnification: Approximately 500,000x. Best for: Looking at surfaces of objects

<h3>What is a Microscope?</h3>

This refers to an optical instrument that is used for viewing very small objects and can be magnified several hundred times.

The type of microscope which would be the best tool to use to view the surface of a bacterial cell is a Scanning electron microscope.

This is because it can be used to look at the surface of objects at high resolution. Maximum magnification: Approximately 500,000x. Best for: Looking at surfaces of objects

Hence, we can see that your question is incomplete, so a general overview was given to you, and only the last question was answered.

Microbes that colonize the skin need to be resistant to __________ salt and __________ ph.

Microbes that colonize the skin need to be resistant to salt and ph.