Answer:
The interaction of cell surface receptor extracellular domains with secreted ligands is essential to most types of cell signaling and cell-cell communication. This initial step and the subsequent activation of membrane-proximal and -distal intracellular signaling cascades lead to specific, although often redundant, cellular responses that control cell proliferation, differentiation, maturation, and survival. Cell surface receptors usually bind their ligands through highly specific molecular interactions to provide the tight regulation necessary for control of physiological responses. However, researchers increasingly appreciate that many receptor systems exhibit, to a greater or lesser extent, cross-reactivity with a spectrum of different ligands
Explanation:
The appropriate response is all of the above. Punctuated equilibrium is a hypothesis in developmental science which suggests that once species show up in the fossil record they will end up plainly steady, demonstrating minimal transformative change for the greater part of their land history. This state is called stasis.
Answer:
They can use these printers to make replica or identical copies of things like fossils. Theses are mostly useful because real fossils are rare so they can still study them without possibly ruining an artifact.
Explanation:
Answer:
Nutritionists and doctors do not recommend energy restrictions below 1200 Calories for women and 1500 Calories for men.
Explanation:
Calorie can be described as the measure of energy present in an organisms food source.
Nutritionists and doctors recommend that in order to maintain the weight, a woman should consume approximately 2000 calories a day. For men, the amount of calories to maintain weight should be 2500 calories. However, the minimum amount of calories that a women should take is 1200 calories and for men the minimum calories should be 1500 calories.
An enzyme inhibitor works as a combination in order to slow down the rate of an enzyme-catalyzed reaction. In order for an enzyme inhibitor to do this, it impacts the of "S" and/or the turn over number. An enzyme inhibitor can also be organic or inorganic and can be found in drugs or antibiotics.