Q: Q: What gland is a butterfly-shaped organ located in the neck anterior to the trachea? Read this paragraph and choose the correct option from the provided answers: 17.4 The Thyroid Gland The thyroid gland is a butterfly-shaped organ located in the neck anterior to the trachea. Its hormones regulate basal metabolism, oxygen use, nutrient metabolism, the production of ATP, and calcium homeostasis. They also contribute to protein synthesis and the normal growth and development of body tissues, including maturation of the nervous system, and they increase the body's sensitivity to catecholamines. The thyroid hormones triiodothyronine (T3) and thyroxine (T4) are produced and secreted by the thyroid gland in response to thyroid-stimulating hormone (TSH) from the anterior pituitary. Synthesis of the amino acidderived T3 and T4 hormones requires iodine. Insufficient amounts of iodine in the diet can lead to goiter, cretinism, and many other disorders. Choices: - pituitary gland - pineal gland - adrenal gland - thyroid gland A:
A: thyroid gland

Q: Q: What kind of waves consist of vibrating electric and magnetic fields? Read this paragraph and choose the correct option from the provided answers: Electromagnetic waves consist of vibrating electric and magnetic fields. They transfer energy across space as well as through matter. Electromagnetic waves vary in their wavelengths and frequencies, and higher-frequency waves have more energy. The full range of wavelengths of electromagnetic waves is called the electromagnetic spectrum. It is outlined in the following Figure below . Choices: - gaseous waves - sound waves - hydraulic waves - electromagnetic waves A:
A: electromagnetic waves

Q: Q: Which of the animals digest cellulose with the aid of methanogens? Read this paragraph and choose the correct option from the provided answers: Stuart Chalmers. Cows digest cellulose with the aid of methanogens . CC BY 2.0. Choices: - pigs - apes - goats - cows A:
A: cows

Q: Q: Sodium is an example of what sort of thing that cannot exist by itself in nature? Read this paragraph and choose the correct option from the provided answers: Most of the elements we know about do not exist freely in nature. Sodium cannot be found by itself (unless we prepare it in the laboratory) because it interacts easily with other materials. On the other hand, the element helium does not interact with other elements to any extent. We can isolate helium from natural gas during the process of drilling for oil. Choices: - concept - compound - aspect - element A:
A: element