Answer:
Five to eight second.
Explanation:
The living organisms are made of the chemical. The hormone, receptors and any information that travels in the body are mainly depends on the chemical substances present in the body.
Chemical substance needs to be travel in the body whenever its require. The speed of the chemical substance depends upon its nature whether the substance is polar or non polar and at the site in which the substance is released. The chemical that travels from the lungs to the brain can travel maximum into 5 to 8 seconds.
Thus, the correct answer is option (a).
11.B 12.A 13.C. 14.B 15.D 16. False. 17.True 18. True 19.True.
Answer:
Rectus abdominis.
Explanation:
Rectus abdominis muscle is also known as abs, lies ventrally on the anterior side of abdomen. The two parallel muscles are lined by linea alba in the rectus abdominis muscles.
The rectus abdominis maintains the neutral pelvic position by exerting an upward pull on inferior surface and on the anterior side. The attachments of rectus abdominis are pubic symphysis and pubic crest.
Thus, the correct answer is option (c).
Dopamine which is responsible for transmitting signals between the nerve cells (neurons) of the brain.
