Answer:
Membrane receptor......or just receptor I dont know which one
Somatotropin
Somatotropin is a polypeptide growth hormone that regulates the growth of bone, muscle, and other body tissues. Somatotropin is secreted by somatotropic cells within the anterior lobe of the pituitary gland. Somatotropin is important in human development as it stimulates growth, cell regenerations and reproduction in humans and other animals. The levels of somatotrophin rise increasingly during childhood and also occur at its peak in puberty.
Answer:
No
Explanation:
Frogs absorb water through their skins, not consume it directly.
Answer:
Nitrogenous bases contain the genetic information, their amount is variable among different species, and the arrangement of these bases is also variable among different species
Explanation:
Both Watson-Crick and Pauling's DNA models considered that DNA nitrogenous bases (i.e., Adenine, Cytosine, Thymine and Guanine) contain the genetic information that determines the characteristics of living organisms. Moreover, both DNA models also considered that nitrogenous base composition varies between species, as well as the arrangement of these bases in the DNA chain also varies between species. Based on these features, Linus Pauling considered that a model where nitrogenous bases would be arranged on the outside of the DNA molecule would be easier for the DNA molecule to be replicated, transcribed, or repaired. Although incorrect, Pauling's DNA triple helix model was fundamental to develop the helical (double-stranded) structure of DNA, which was finally discovered by Watson and Crick in 1953.
