2 years ago

Please help!

Biology

1 answer:

postnew [5]2 years ago

7 0

Answer:

Modifying the accessibility of chromatic leads to complex regulation of eukaryotic gene expression.

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When reproductive isolation prevents members of two populations from interbreeding and producing offspring, thus separating thei

Goshia [24]

This can cause speciation, the two populations can go on to create separate species.

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3 years ago

Hyperextension bends a joint in the opposite direction as flexion. True or false?

kherson [118]

<span>This is true. Extension is the opposite of flexion, they're like antonyms, so hyperextension would be an extension even beyond that, or in this case, it would be in the opposite direction of the flexion of a joint. That is why the answer to this question should be true.</span>

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3 years ago

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A children's liquid medicine contains 100 mg of the active ingredient in 5 mL . If a child should receive 150 mg of the active i

wariber [46]

Answer:

The correct answer is 7.5 ml

Explanation:

The medicine contains 100 mg in 5 ml, that means that the concentration of the active ingredient is 100 mg/5 ml= 20 mg/ml

If we divide a concentration (in mg/ml) into a mass (in mg) we obtaine a volume (in mL). Thus, in order to calculate the mililiters of medicine which contain 150 mg of the active, we have to only divide mass (150 mg) into the concentration of active ingredient as follows:

mL = $\frac{150 mg}{20 mg/mL}$ = 7.5 mL