Answer the following question given this paragraph: Image copyright James Steidl, 2014. During sexual reproduction, a sperm fertilizes an egg . Used under license from Shutterstock. com. Q: What fertilizes an egg during sexual reproduction? Choices: - gametes - mucus - cytoplasm - sperm A:
sperm
Answer the following question given this paragraph: The third conservation law is conservation of angular momentum. This vector quantity is the product of rotational velocity and rotational inertia. In any closed system (including the universe) the quantity of angular momentum is fixed. Angular momentum can be transferred from one body to another, but cannot be lost or gained. If a system has its angular momentum changed from the outside it is caused by a torque. Torque is a force applied at a distance from the center of rotation. Q: Which of newton's laws states that the quantity of angular momentum in a closed system is fixed? Choices: - fourth conservation law - sixth conservation law - second conservation law - third conservation law A:
third conservation law
Q: Answer the following question given this paragraph: Figure 42.21 The spleen is similar to a lymph node but is much larger and filters blood instead of lymph. Blood enters the spleen through arteries and exits through veins. The spleen contains two types of tissue: red pulp and white pulp. Red pulp consists of cavities that store blood. Within the red pulp, damaged red blood cells are removed and replaced by new ones. White pulp is rich in lymphocytes that remove antigen-coated bacteria from the blood. (credit: modification of work by NCI). Q: What organ is similar to a lymph node but is much larger and filters blood instead of lymph? Choices: - kidney - liver - bone - spleen A:
A: spleen
Question: Answer the following question given this paragraph: By gaining an electron, the chlorine atom becomes a chloride ion. It now has more electrons than protons and a charge of -1. Negative ions are named by adding the suffix ide to the first part of the element name. The symbol for chloride is Cl - . Q: What kind of ions are named by adding the suffix -ide to the end? Choices: - similar ions - particular ions - positive ions - negative ions A:
Answer: negative ions
*Question*
Answer the following question given this paragraph: Cells share the same needs: the need to get energy from their environment, the need to respond to their environment, and the need to reproduce. Cells must also be able to separate their relatively stable interior from the ever-changing external environment. They do this by coordinating many processes that are carried out within organelles, or other cellular structures. Structures that are common to many different cells indicate the common history shared by cell-based life. Examples of these common structures include the components of both the cell (or plasma) membrane and the cytoskeleton, and other structures shown in Figure above . Q: Cells must also be able to separate their relatively stable interior from what? Choices: - their habitat - predators - competition and chaos - the external environment A:
**Answer**
the external environment
*Question*
Answer the following question given this paragraph: Alkenes can react with water to form alcohols. Q: Alkenes can react with what to form alcohols? Choices: - air - proteins - sugars - water A:
**Answer**
water