Which of the following is the correct order of steps in transmission between two neurons?
1. Neurotransmitters are released into the synaptic cleft.
2. Receptors on the postsynaptic membrane bind neurotransmitters.
3. An action potential travels down an axon and reaches the presynaptic membrane.
4. Synaptic vesicles move to and bind with the presynaptic membrane.
5. Binding of neurotransmitters causes excitation or inhibition.
O
A. 2, 3, 1, 5,4
B.5, 4, 3, 2, 1
C.3,4, 1, 2,5
D. 4, 3, 1, 2,5
E. 1, 2, 3, 4, 5

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen

Abiologist counts the number of rabbits in a population each year and observes a decrease in population. since the coyote population has exploded, the biologist concludes that the coyote population has had a negative interaction with the rabbit population. which describes the biologist’s actions? a.) experimentationb.) inferencec.) observationd.) interacting