Organisms that live in deciduous forests have developed unique adaptations that aid in their survival. How are the bill and feet of the platypus specially adapted for survival in their environment? a. close the nostrils in its bill when diving underwater; pointed bill for spearing fish for food; detect vibrations of moving prey using the pads on their feet b. detect the electrical discharges of prey in water using small pits on its bill; crush the food with grinding pads on the top and bottom of its bill; webbed feet c. have wide nails for digging burrows; webbed feet; grind food with modified teeth on the upper part of their bill d. detect the electrical discharges of prey in the sand using small pits on its bill; pointed bill for spearing fish for food; ‘finger-like’ toes on their feet that help them hold onto and eat their food

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u