Answer:
The ligand has only one receptor that it is able to bind to
Explanation:
The shape of the ligand and its corresponding receptor allow there to be specificity. For example, receptors for ligand A would be found on the target immune system cells and not on cardiac muscle cells or skin epithelial cells. Therfore, even though the cardiac muscle cells or the skin epithelial cells would be exposed to ligand A, they would not be able to bind to it and therefore could not react because of the specificity of the receptor of ligand A at that moment
Answer: Primary and secondary succession
Explanation: In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area previously occupied by living things is disturbed—disrupted—then recolonized following the disturbance.
Overeating and weight gain in rats result from either ______ or ______<span>. destruction of the VMH; stimulation of the LH. 3.</span>
Continental Tropical A) Hot and very dry. Can bring record heat in the summer.
Arctic-Frigid Dry Air B) Can reach -30 to -60 degrees.
Maritime Polar C) Forms over the North Atlantic and North Pacific. Brings cloudy damp weather.
Maritime Tropical D) Cold temperatures and very little precipitation.
Continental Polar E) Warm temperatures and copious moisture. Forms in the Atlantic Ocean and Gulf of Mexico
