Answer:
Epinephrine binds to receptors on some smooth muscles (ex: around arterioles) → Ca++ released from ER → intracellular Ca++ up → stimulates contraction. c. Epinephrine binds to receptors on some smooth muscles (ex: around bronchioles) → phosphorylates protein needed for response to Ca++, preventing response.
Answer:
Negative regulation
Explanation:
In the trp operon, tryptophan binds to the repressor protein, then this complex binds to operator effectively blocking gene transcription preventing the production of enzymes that aids in the synthesis of tryptophan. This happens when high levels of tryptophan is detected. This, it is a repressible/negative type of regulation.
Answer:
Lysosomes are organelles that contain hydrolytic enzymes (lysozymes) which are required for membrane degradation, thereby they may be important during the removal of the interdigital membrane.
Explanation:
Lysosome plays a critical function by digesting cellular components such as, in this case, the interdigital membrane. During mammal embryo development, the interdigital membrane is reabsorbed, it is a structure between the digits that appeared during evolution in aquatic animals. However, in terrestrial mammals, it is a vestigial structure leftover from their ancestors.
Well depending on the source if its wind yes but if water then the water source doesnt need favorable weather for it.
A sound scientific conclusion mostly relies on evidence to back it up. A good conclusion will always have some sort of evidence like for an example experimental lab results to back it up.
