Q6. a neurotransmitter would have a greater chance of starting an action potential in a post-synaptic neuron by:

opening k+ channels in the post-synaptic membrane

causing a graded depolarization in the post-synaptic membrane

causing a graded hyperpolarization in the post-synaptic membrane

closing na+ channels in the post-synaptic membrane

Biology 1c cumulative exam i need awsners

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.