Through experiments and studies
Answer:
compound can be broken down into smaller compound or their basic element by chemical change
The correct answer is option B, that is, the sympathetic system prepares the body for stress and activity and the parasympathetic system prepares the body for rest.
Both the parasympathetic and sympathetic nervous system are the components of the autonomic nervous system that works obligatorily. The sympathetic nervous system holds the key in controlling the body at the time of stress and injury, it is generally regarded as fight or flight. It contracts the muscles of the heart in order to enhance the rate of the heart.
On the other hand, the parasympathetic nervous system is responsible to monitor the function of the body when it is at rest. It assists in sustaining the homeostasis in the body. It relaxes the muscles of the heart in order to reduce the rate of the heart.
The suggest animal alive is a human beings
Major morphological characteristics The presence of a bicondylar angle, or valgus knee; a more inferiorly placed foramen magnum; a reduced or non posable big toe; a higher arch on the foot; a more posterior orientation of the anterior portion of the iliac blade; a relatively larger femoral head diameter; an increased femoral neck length; and slightly larger and anterior posteriorly elongated femoral condyles.
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What is bipedalism?</h3>
Bipedalism refers to locomotion on two legs (e.g., walking, jogging, running, etc.). Although it is common to see animals standing or walking on two legs, only a few creatures use bipedalism as their primary mode of movement. Animals, such as chimps and gorillas, that temporarily acquire bipedalism in order to execute a specific role engage in a kind of movement known as facultative locomotion.
Bipedalism is not always the fastest or most efficient way to run or walk, but it offers certain benefits over certain specialized kinds of quadrupedalism. It's unclear why early hominins adopted bipedalism. Many ideas, however, contend that environmental selection forces drove the evolution of bipedalism.
learn more about bipedalism refer:
brainly.com/question/19671997
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