Answer:
The correct answer is A acetylcholine binds to a receptor protein on the motor end plate
Explanation:
The neurotransmitter acetylcholine is released by the motor neuron during the transmission of signals across a neuromuscular junction.
The released acetylcholine then diffuses the synaptic cleft and binds to the receptor protein present on the membrane of muscle fibre.
This ultimately result in the influx of sodium ion inside the muscle cell thereby causing depolarization to generate an action potential.
I believe these types of structures are called vestigial structures. Vestigial structures are body parts that seemingly have no purpose or function in the current form of an organism of the given species. Examples of such structures in human include; the muscles of the ear, the appendix, the tail bone, body hair, wisdom teeth among others. These structures are often homologous to structure that are functioning normally in other species and for this reason they can be considered evidence for evolution.
<span>Rice pudding would be an example of a heterogeneous mixture.
A heterogeneous mixture means that different constituents of a mixture can be identified. Rice pudding consists of rice suspended in a cream. It is possible to identify the grains of rice and the creamy part of the mixture.
A homogeneous mixture looks the same throughout--you cannot identify individual parts or ingredients. The parts of a homogeneous mixture are said to be uniformly distributed. Rainwater and air are examples of homogeneous mixtures.</span>
Answer:
the answer I would say would be C
Garbage dumped into the ocean affects the ocean's ecosystem and may drift back to shore, where it can become a health risk to humans.
