Answer:
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Hey, here it is!!
Can u give me a BRAINLIEST ANSWER???
Extension: Produced by the sartorius and quadriceps femoris group of muscles. Flexion: Produced by the biceps femoris, semitendinosus, and semimembranosus muscles. The popliteus muscle facilitates this movement by unlocking the fully extended knee joint.
The answer is the idea of mutations was understood by both but Lamarck was able to prove it.
The answer would be chromosomes
Because neurones will not function properly neither will neuroreceptors if a person lacks neurotransmitters, these two parts (transmiters and receptors) all work together and depend on eachother.
Neurones are resposible for transmitting informations trought the body, and if neurotransmitters are no-existent, information may not be able to get to some body parts since neurotransmitters transmit the information.
Hope it helped,
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