True.
<span>The trachea is about 10 cm long and it has an approximate diameter of 2 cm. It is located anterior to </span>(in front of) the esophagus and posterior to (behind) the isthmus of the thyroid. The right and left main bronchi are branches of the trachea. This division occurs at the level, or just below the level, of the sternal angle, also known as the manubriosternal joint.
1.) is C. ATP
2.) is A. two pyruvate molecules
3.) is B. NADH and FADH2
4.) is A. an anaerobic process that has CO² as a byproduct
5.) is b. lactic acid fermentation
Answer:
Calcitonin- reduce blood calcium level
Parathyroid hormone- Raise blood calcium level
Explanation:
The thyroid gland is an endocrine gland which secrete its hormone in the blood directly. Both calcitonin and parathyroid hormone are released by the thyroid gland. Parathyroid hormone is released when the blood calcium level is low.
Parathyroid hormone increases the blood calcium level by osteoclast stimulation which releases calcium from bones and increases blood calcium level. Calcitonin is antagonistic to parathyroid hormone and it reduce the blood calcium level in the blood by stimulating the activity of osteoblast.
Answer:
I can help at anytime, but I don't know how to contact you with brainly.
Explanation:
