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zavuch27 [327]
3 years ago
9

Why is active transport needed to take mineral ions into the cytoplasm of the root hair cell?

Biology
1 answer:
Lera25 [3.4K]3 years ago
5 0

Answer: In plants, they need to move mineral ions from the soil into the roots. Mineral ions are more concentrated in the cytoplasm of plant cells than in soil water or dillute.

Explanation:

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In fruit flies (Drosophila melanogaster) grey body is dominant to black body and normal wings are dominant to vestigial wings. I
zepelin [54]
The answer is C. We can suppose that the Grey gene is "A" and Black gene is "a". So the gene of heterozygous grey fruit fly is "Aa", and the black-bodied fruit fly is "aa". After mating, the offspring can get only "a" from balck-bodied fruit fly and has equal opportunity to get a "A" or "a" from heterozygous grey fruit fly. If the gene of offspring is "Aa", it will be grey. If "aa", it will be black. So the proportion of being black is 0.5.
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3 years ago
State if the body had been dead for more than or less than 12 hours based on the number of degrees lost (19 degrees). *
KiRa [710]

After the first 12 hours, the body loses about 0.39°C (0.7°F) per hour. than 12 hours. you use the rate of 0.78°C per hour to estimate the time of death. Temperature of dead body is 32.2°C (90°F)

Explanation:

This phase is known as algor mortis, or the death chill. Each hour, the body temperature falls about 1.5 degrees Fahrenheit (0.83 degrees Celsius) until it reaches room temperature. At the same time, without circulation to keep it moving through the body, blood starts to pool and settle.

he decrease in body temperature follows a somewhat linear progression: 3  two degrees Celsius in the first hour; one degree each hour thereafter.

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3 years ago
About how much of the sun's radiation would strike the earth if the earth did not have its atmosphere?
LUCKY_DIMON [66]
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OLEGan [10]

Answer:simply an uncontrolled fire that is wiping out large fields and areas of land.

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