D - The human nervous system includes billions of individual neurons that assist with internal communication.
An estimate is that the human brain contains around 80 billions individual neurons with A LOT more synapses - the points of contact where information gets transmitted. Neurons are responsible for our internal communication. Every motoric move you make, every sensory stimuli your receive through your eyes, ears, or through your tongue, every thought you make, everything is a consequence of an elaborate dance of continuously active neurons and the different connections between them that get activated again and again.
<span>Which symptom is a sign of alcohol poisoning?
- irregular breathing
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Answer:
The endocrine glands that produce the steroid hormones, such as the gonads and adrenal cortex, arise from the mesoderm. In contrast, endocrine glands that arise from the endoderm and ectoderm produce the amine, peptide, and protein hormones. Because the endocrine glands play pivotal roles both in reproduction and in development, it seems plausible to extend the role of the endocrine system to account for the progressive changes in body structure and function that occur with aging. changes occur that affect the endocrine system, sometimes altering the production, secretion, and catabolism of hormones. For example, the structure of the anterior pituitary gland changes as vascularization decreases and the connective tissue content increases with increasing age. This restructuring affects the gland’s hormone production. For example, the amount of human growth hormone that is produced declines with age, resulting in the reduced muscle mass commonly observed in the elderly.
C. 60 seconds. Heart rate is measured in beats per minute.
