With flowers- most are asexual, meaning that if there is harsh conditions like rain or wind. Many of the seeds can be damaged and aren’t able to get to the female to make more. Yet, sexually the seeds are protected by the male until the seed is transferred into the female. But even then, it will be safer. Hope that helped. :)
Different responses triggered by thyroxine in different organisms is most likely due to different kinds of receptor and consequently different signal cascade and response.
The thyroid hormones (including thyroxine) bind to a specific types of nuclear receptors, termed the thyroid hormone receptors which together with corepressor molecules, bind DNA regions called thyroid hormone response elements.
Polypeptide chains represent the primarylevel of protein structure. The secondarystructure of a protein results from hydrogen bonding between amino acids in the peptide chain. This leads to twisting or folding of the chain into the alpha helix and the beta pleated sheet shapes.
The three components of a scientific argument are Scientific Idea, Expectation and Observation. The Scientific idea generate expectation, expectations results to observation and the last is relevant to those expectations form what we call scientific argument.
