Answer:
Cell membrane
Explanation:
The cell membrane supports and protects the cell. It controls the movement of substances in and out of the cells. It separates the cell from the external environment. The cell membrane is present in all the cells.
Cellular organization, Method of reproduction, Metabolism, Heredity, response to stimuli, homeostasis, adaptation to evolution, and growth and development,
Good luck!
Scavengers living in the coral reef clean up algae and decayed matter. The correct answer is B. Hope I helped. =)
Answer:
The puff of air is an unconditioned stimulus, and blinking is an unconditioned response.
Explanation:
An unconditioned stimulus is the trigger for an unconditional natural and automatic response. In other words, all the action that will result in an automatic response, such as the puff of air, before the automatic blinking response.
An unconditioned response is that reaction we do without having learned it from anyone, but it comes out automatically and naturally. This action <u>always arises after an unconditioned stimulus.
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Some examples of this interaction between stimulus and response can be: when we burn when we touch something hot and take out our hand, when we cry when we cut onion, or jump when we hear a loud sound.
<u>This concept was discovered by Russian physiologist</u><u> Ivan Pavlov.</u>
