Answer:
There are two main types of stem cells: embryonic stem cells and adult stem cells.Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost. They can divide over and over again to produce new cells.
Creeping thistle continuously survives through easy germination of seeds. The Creeping thistle seed can be buried in undisturbed soil for over 20 years and still become growable. And also, the roots help in their growth. They absorb nutrients and regenerate to form new plants. Although the roots may be able to penetrate some meters down, most regeneration occurs within or just below the plow layer. Portions of the adjacent roots become thick due to the developing storage tissue which is where new shoots are formed.
Filtration rate = 125 mL/minute = 0.125 L/min
Minutes in a day = 24 hours x 60 minutes per hour
Minutes in a day = 1440
Total filtrate per day = 0.125 x 1440 = 180 L
Number of 2 L bottles to be filled = 180 / 2
= 90 bottles
This value is very large and we do not produce this much urine in a day. This means a portion of the fluid is being reabsorbed.
Absorption.
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The elodea is getting the carbon dioxide from its environment like when underwater animals breathe out carbon dioxide the plants will use that carbon dioxide. The plants can also get the carbon dioxide from the atmosphere which can "dissolve" in water.
