Moonlight. Turtles generally don't care if it's day or night.
The environment was a tropical ocean
The simultaneous arrival of graded depolarization and a graded hyperpolarization of equal but opposite magnitude at a particular location on the dendritic membrane is likely to cancel the effects of each other and no change will occur in the membrane potential.
Explanation:
Graded potentials lead to temporary minor changes in the membrane potential associated with neuron’s dendrites. The amount of change caused depends upon the size and duration of the stimulus. These can be depolarizing or hyperpolarizing.
Graded depolarization occurs due to the entry of sodium or calcium ions; whereas, graded hyperpolarization occurs due to exit of potassium ions or entry of chloride ions.
When equal but opposite magnitude of graded depolarization and hyperpolarization occurs at a particular dendride of a neuron, the positive and negative charges get neutralized causing little or no effect on the total membrane potential.
The right option is a. contour interval
The difference in elevation between the highest and lowest contour lines on a topographical map is called contour interval.
A contour interval is the vertical distance between the two contour lines (highest and lowest) in a topographical map. The contour interval is usually stated explicitly on the right-hand lower part in every map. 20 feet for a 1:24,000 map scale is the frequently used contour interval and different contour intervals is available for different maps.
This type of mutation is called antibiotic resistance. It is the ability of a microbe to resist the effects of medication previously used to treat them. Hope this answers the question. Have a nice day. Feel free to ask more questions.