Answer:
regulating the rate of filtrate formation and controlling systemic blood pressure
The correct answer for the question above is letter a. The main function of cellulose in plants is to <span>provide physical support. Cellulose makes plants parts strong. For instance, the stems, leaves and branches are rigid because of the tough walls that surrounds the cells.</span>
Answer:
The R-group
Explanation:
Amino acids are organic compounds that combine to form proteins. There are 20 of them, out of which 9 are essential. All of them have a similar structure: they consist of an alpha (α) carbon atom bonded to an amino group (NH2), a carboxyl group (COOH), a hydrogen atom, and an R group. The R group is the organic component, a side chain, that is unique to each amino acid.
This is why the first option is the correct one.
Answer:
temperature of water
Explanation:
an independent variable is the value that can be changed or controlled in a given model, they provide the "input" which is modified by the model to change the "output". in this example, the temperature is changed, affecting the fish's breathing rate.
Indeed, steroid hormones have an important role in the well-being of the individual through specialized cells (having specific receptors). Take the example of vitamin D.
Vitamin D is involved in calcium and phosphorus absorption by the intestines, as well as in their reabsorption by the kidneys. It is involved also in bone mineralization of the skeleton and joints, as well as on muscle tone.
The mechanism of action of the hormone is identical to the scheme:
Its carrier is vitamin D-binding protein
The cell may be an intestinal cell, bone cells or renal cells.
The vitamin acts on the DNA is activating / inhibiting certain genes encoding proteins so as to increase the level of calcium in blood.
