Fetal Haloglobin

- The developing fetus does not breath by drawing in air into its lungs like an adult does. Instead, the fetus draws its oxygen from the mother’s blood where the oxygen content is low. The hemoglobin in adults consist of two alpha and two beta subunits. Fetal hemoglobin consists of two alpha and two gamma subunits. This allows hemoglobin to bind oxygen with higher affinity compared to adult hemoglobin, allowing the extraction of oxygen from maternal circulation. It Is important in fetal development because fetal hemoglobin is the main oxygen transport protein during the last stages of development. - A freshwater fish excretes ammonia to be able to maintain water balance in homeostasis because they invest some of their energy to convert the …show more content…
They have to get rid of their soluble solutes so their waste products are more concentrated. They are able to do this by the use of nitrogenous waste products and excrete most of their nitrogen as uric acid instead of urine. - A conformer is an animal that maintains an internal condition and conforms to changes in accordance with changes in an environmental variable. A regulator is an animal has mechanisms of homeostasis moderate internal changes in a particular variable due to external fluctuation of that variable. A conformer maintains their body temperature from either internal metabolism or from the external environment. A regulator gains most of their heat from external sources. Regulators (organism A) uses mechanisms of thermoregulation by using their metabolism to regulate their body temperature which is endothermy. In cold environments, they have mechanisms for cooling their bodies, meaning they can withstand heat loads that most ectotherms could not withstand. Regulators or endotherms need to consume more food to speed up their metabolism which regulates their body …show more content…
They have to consume other organisms in order to fulfill their essential nutrients such as amino acids and proteins to then be able to continue on their digestive system and further obtain nutrients. The pitcher plant absorbs most of its nutrients by consuming other organisms but obtains its energy through photosynthesis and its requirements of nitrogen through the minerals within the soil which is their macronutrients. As for the hummingbird, the nectar gives them energy for flight but they also need a lot of protein. Since they have such a high metabolism, the pollen from the flowers gives them some of its protein but insects are their main source of proteins and main source for essential nutrients. Hormones are signaling molecules that are secreted into the extracellular fluid by endocrine cells reaching target cells and circulate throughout the bloodstream, communicating regulatory messages within the body. One of the basic systems for communication and regulation in an animal body is chemical signaling by hormones which is the function of the endocrine system. The exocrine glands produce pheromones and are secreted into the outside