You will need to complete a Punnett square to answer this. Let's say tongue rolling is R and non-rollers are r. The heterozygous roller would be Rr and the non-roller would be rr.
Rr x rr
That yields two offspring with Rr (rollers) and two rr (non-rollers). The ratio is 2:2 or 50%. See the attached image for the completed Punnett square.
The system that is affected when the xylem tissue is removed in plants
is water transportation. The scientific name for this process is
transpiration, and without the xylem tissue it would not be possible for
this process to occur.
These are points over water usage in the US are whether people should build dams on rivers ,whether people should drink bottled or tap water, whether water treatment should be privatized.
<h3>What Contaminated water and loss in US?</h3>
Contaminated water and a loss of simple sanitation are undermining efforts to give up excessive poverty and disorder withinside the world's poorest countries. In 2017, 2 billion humans global did now no longer have get entry to to simple sanitation centers consisting of bathrooms.
As the U.S. water deliver decreases, call for is about to increase. On average, every American makes use of eighty to a hundred gallons of water each day, with the nation's predicted overall day by day utilization topping 345 billion gallons—sufficient to sink the country of Rhode Island below a foot of water.
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Answer:
Explanation:
Small single-celled organisms.