Answer:
C. A concentration gradient must exist.
Answer:
The water is likely to be dirty or not clear enough. I mean, if you through a key into the body of water, you can't see the key at the bottom of the water body because of impurities which make the water look dirty or not visible or transparent enough.
Explanation:
Answer:
Hypotonic
Explanation:
The tonicity of a solution describes its solute composition and its ability to exert osmotic pressure on a membrane. A solution can attain three tonicity states viz: hypotonic, hypertonic and isotonic.
A solution is said to be HYPOTONIC if its solute concentration is lesser than that of its surrounding environment. In other words, the concentration of solute in the solution is lower in comparison to another. This is the case of the solution outside the dialysis bag.
The solution inside the dialysis bag contains more concentration of solute because of the sugar placed in it. The solution outside the bag contains distilled water with no solute, hence, it is HYPOTONIC to the solution inside the bag.
Answer:
False
Explanation:
The thyroid gland secrete two thyroid hormones called thyroxine and triiodothyronine. Thyroxine is the in active form which is later converted to the active form triiodothyronine by kidneys and livers. The two hormones function by increasing the metabolic activities of tissues. They increase the body heat production which in turn increase oxygen consumption and ATP hydrolysis because they burn body fat thereby increasing energy production and increasing basal metabolic rate. They regulate body temperature.
