Answer the following question given this paragraph: muscle cells of the uterus become more sensitive to its effects. Oxytocin is continually released throughout childbirth through a positive feedback mechanism. As noted earlier, oxytocin prompts uterine contractions that push the fetal head toward the cervix. In response, cervical stretching stimulates additional oxytocin to be synthesized by the hypothalamus and released from the pituitary. This increases the intensity and effectiveness of uterine contractions and prompts additional dilation of the cervix. The feedback loop continues until birth. Although the mother's high blood levels of oxytocin begin to decrease immediately following birth, oxytocin continues to play a role in maternal and newborn health. First, oxytocin is necessary for the milk ejection reflex (commonly referred to as "let-down") in breastfeeding women. As the newborn begins suckling, sensory receptors in the nipples transmit signals to the hypothalamus. In response, oxytocin is secreted and released into the bloodstream. Within seconds, cells in the mother's milk ducts contract, ejecting milk into the infant's mouth. Secondly, in both males and females, oxytocin is thought to contribute to parentnewborn bonding, known as attachment. Oxytocin is also thought to be involved in feelings of love and closeness, as well as in the sexual response. Q: What is continually released during childbirth through a positive feedback mechanism and prompts uterine contractions to fetal head toward the cervix? Choices: - hemoglobin - insulin - vasopressin - oxytocin A:
oxytocin
Answer the following question given this paragraph: 7. You look through a telescope at Rigel. Rigel is the brightest star in the Orion constellation. Rigel is around 800 light years from Earth. What are you looking at when you look through that telescope? What does Rigel look like today?. Q: What is the brightest star in the orion constellation? Choices: - natel - omicron - sol - rigel A:
rigel
Q: Answer the following question given this paragraph: Genes play an important part in determining our adult height. However, factors such as poor nutrition can prevent us from achieving our full genetic potential. Q: What factor other than genes is important in determining adult height? Choices: - intelligence - cultivation - relaxation - nutrition A:
A: nutrition
Question: Answer the following question given this paragraph: The pea-sized pituitary gland is just below the hypothalamus and attached directly to it. The pituitary receives hormones from the hypothalamus. It also secretes its own hormones. Most pituitary hormones control other endocrine glands. That's why the pituitary gland is called the "master gland" of the endocrine system. Table below lists several pituitary hormones and what they do. Q: The pituitary gland is called the "master gland" of what system? Choices: - hormonal - digestive - nervous - endocrine A:
Answer: endocrine
*Question*
Answer the following question given this paragraph: Q: What is the predominant stage in the life cycle of most scyphozoans? Choices: - hydra - spore - gamete - medusa A:
**Answer**
medusa
Q: Answer the following question given this paragraph: Cellulose Cellulose, a fibrous carbohydrate found in all plants, is the structural component of plant cell walls. Because the earth is covered with vegetation, cellulose is the most abundant of all carbohydrates, accounting for over 50% of all the carbon found in the vegetable kingdom. Cotton fibrils and filter paper are almost entirely cellulose (about 95%), wood is about 50% cellulose, and the dry weight of leaves is about 10%20% cellulose. The largest use of cellulose is in the manufacture of paper and paper products. Although the use of noncellulose synthetic fibers is increasing, rayon (made from cellulose) and cotton still account for over 70% of textile production. Like amylose, cellulose is a linear polymer of glucose. It differs, however, in that the glucose units are joined by -1,4-glycosidic linkages, producing a more extended structure than amylose (part (a) of Figure 16.11 "Cellulose"). This extreme linearity allows a great deal of hydrogen bonding between OH groups on adjacent chains, causing them to pack closely into fibers (part (b) of Figure 16.11 "Cellulose"). As a result, cellulose exhibits little interaction with water or any other solvent. Cotton and wood, for example, are completely insoluble in water and have considerable mechanical strength. Q: Because the earth is covered with vegetation, cellulose is the most abundant of all what? Choices: - impurities - vegetables - rocks - carbohydrates A:
A: carbohydrates