Answer the following question given this paragraph: Figure 4.22 Microfilaments thicken the cortex around the inner edge of a cell; like rubber bands, they resist tension. Microtubules are found in the interior of the cell where they maintain cell shape by resisting compressive forces. Intermediate filaments are found throughout the cell and hold organelles in place. Q: What thickens the cortex around the inner edge of a cell? Choices: - mitochondria - vacuoles - plasma membrane - microfilaments A:
microfilaments
(Question)
Answer the following question given this paragraph: Atoms are neither created nor destroyed during a chemical change, but are instead rearranged to yield. Q: What basic units are neither created nor destroyed during a chemical change, but are instead rearranged? Choices: - particles - molecules - Electrons - atoms A:
(Answer)
atoms
Ques: Answer the following question given this paragraph: Visit this website (http://openstaxcollege. org/l/embryo_fetus2) to see the stages of human fetal development. Labor is the muscular contractions to expel the fetus and placenta from the uterus. Toward the end of the third trimester, estrogen causes receptors on the uterine wall to develop and bind the hormone oxytocin. At this time, the baby reorients, facing forward and down with the back or crown of the head engaging the cervix (uterine opening). This causes the cervix to stretch and nerve impulses are sent to the hypothalamus, which signals the release of oxytocin from the posterior pituitary. Oxytocin causes smooth muscle in the uterine wall to contract. At the same time, the placenta releases prostaglandins into the uterus, increasing the contractions. A positive feedback relay occurs between the uterus, hypothalamus, and the posterior pituitary to assure an adequate supply of oxytocin. As more smooth muscle cells are recruited, the contractions increase in intensity and force. There are three stages to labor. During stage one, the cervix thins and dilates. This is necessary for the baby and placenta to be expelled during birth. The cervix will eventually dilate to about 10 cm. During stage two, the baby is expelled from the uterus. The uterus contracts and the mother pushes as she compresses her abdominal muscles to aid the delivery. The last stage is the passage of the placenta after the baby has been born and the organ has completely disengaged from the uterine wall. If labor should stop before stage two is reached, synthetic oxytocin, known as Pitocin, can be administered to restart and maintain labor. Q: Labor is the muscular contractions to expel the fetus and placenta from where? Choices: - lungs - anus - tumors - uterus A:
Ans: uterus
(Q).
Answer the following question given this paragraph: The volume of a regularly shaped solid can be calculated from its dimensions. For example, the volume of a rectangular solid is the product of its length, width, and height. Q: The volume of a regularly shaped solid can be calculated from its what? Choices: - layers - density - mass - dimensions A:
(A).
dimensions
Ques:Answer the following question given this paragraph: Frontal Bone The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella (see Figure 7.5). The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin, is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin, forming rounded brow ridges. These are located just behind your eyebrows and vary in size among individuals, although they are generally larger in males. Inside the cranial cavity, the frontal bone extends posteriorly. This flattened region forms both the roof of the orbit below and the floor of the anterior cranial cavity above (see Figure 7.8b). Q: What is the name of the bone that forms the forehead? Choices: - forebone - high bone - upper bone - frontal bone A:

Ans:frontal bone
Ques:Answer the following question given this paragraph: Gravity has traditionally been defined as a force of attraction between things that have mass. According to this conception of gravity, anything that has mass, no matter how small, exerts gravity on other matter. Gravity can act between objects that are not even touching. In fact, gravity can act over very long distances. However, the farther two objects are from each other, the weaker is the force of gravity between them. Less massive objects also have less gravity than more massive objects. Q: What is the term for the force of attraction between things that have a mass? Choices: - weight - motion - magnetism - gravity A:

Ans:
gravity