The answer is true. Of all the numerous ways research can be directed, the best quality level of evidence where medications and treatments are concerned is the Randomized Controlled Trial. A Randomized Controlled Trial is a test or study directed such that whatever number wellsprings of predisposition as could reasonably be expected are expelled from the procedure.
When the sun reaches the end of released into space, forming a life cycle, the expanded part will be Planetary nebula.
<u>Explanation:</u>
Planetary nebula formed after when the external layer is shredded due to running out of fuel so that it can burn. This external layer of gas expand into the space, the shape of nebula can often be ring shaped or even a bubble. At the centre of this nebula it has the shinning left over middle part of the star. This star can also be seen. The temperature of the nebula is 100000C. The planetary nebula last for about 10000 years between its formation and the recombination.
Answer:
B. Prokaryotic and Eukaryotic
Explanation:
Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic, which do not.
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The villi of the small intestine use active transport to take up nutrients after concentration has reached equilibrium.
<h3>What is Active transport?</h3>
Active transport may be defined as the process that occurs against the concentration gradient and is mediated by carrier proteins. Metabolic energy is used to move ions or molecules against a concentration gradient.
During the process of digestion, the villi in the small intestine enthrall the soluble nutrients gradually. Over time, the concentration of nutrients in the villi acquires an equilibrium with the concentration in the gut. Until here, the nutrient uptake is carried by the process of passive diffusion.
But after attaining the equilibrium, the nutrient uptake is carried by the process of active transport.
The complete question is as follows:
What part of the body uses active transport to take up nutrients after concentration has reached equilibrium?
- Lungs
- Stomach
- Small intestine
- Liver
Therefore, the correct option for this question is C, i.e. small intestine.
To learn more about Active transport, refer to the link:
brainly.com/question/18434867
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