Answer:
A hydrocarbon is any of a class of organic chemicals made up of only the elements carbon (C) and hydrogen (H). The carbon atoms join together to form the framework of the compound, and the hydrogen atoms attach to them in many different configurations.
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A. Process by which our sensory receptors take in stimulus energy from our environment
Perception is the process by which our brain organizes and interprets information.
The correct option is B
Acetylcholine released into the junction between a motor neuron and a skeletal muscle binds to a sodium/potassium channel and opens it. This is an example of the ligand-gated channel.
The acetylcholine receptors are cation-selective members of the ligand-gated ion channels which are pentameric and also are oligomeric protein assemblies that process to convert a chemical signal through the postsynaptic membrane into an ion flux.
Acetylcholine opens the sodium and potassium channels of a cell which makes the concentrations of these two ions inside and outside stabilize and depolarize the membrane of the cell.
This depolarization will result in the formation of nerve impulses. The receptors in muscle fibers recognize acetylcholine as a sign of muscle contraction from neuron to muscle.
Therefore, acetylcholine receptors are actually pentameric ligand-gated ion channels but muscarinic acetylcholine receptors are coupled membrane proteins of seven helix G-proteins.
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Answer: the most likely case would be that population reached the carrying capacity of the area.
Explanation:
Explanation:First off the population of the prey that is the "coastal fish" In this case will increase in population and acquire a greater area for their survival and will start to (die-off).when the predators in an area are reduced or get extinct this change triggers a reaction called as "tropic cascade" in the ecosystem in which the change in the predator population has affects on the food web.
For example :when the wolves were eliminatefls from the American west, there were changes in the elk population and the vegetation the elk ate.
Therefore both preys and predators balance each other.
Out of the given statements, the one that best describes evolution is A. it is based on the idea that all life is related. The theory of evolution states that over time, the environment of a species exist pressures, forcing the organism to adapt and the best adapted organisms survive. This continuous process of adaptation to the changes in the environment leads to an increasing complexity of life; however, all life is related as even the most complex organisms were at a point simpler ones.
