Q: In dioecious animals, females generally produce what contribution to reproduction? Read this paragraph and choose the correct option from the provided answers: During sexual reproduction, two parents are involved. Most animals are dioecious , meaning there is a separate male and female sex, with the male producing sperm and the female producing eggs. When a sperm and egg meet during fertilization , a zygote , the first cell of a new organism, is formed ( Figure below ). This process combines the genetic material from both parents. The resulting organism will be genetically unique. The zygote will divide by mitosis and grow into the embryo. Choices: - milk - warmth - intelligence - eggs A:
eggs

(Question)
Q: Anaerobic prokaryotes can live without what compound in their environment (it's a compound that people do need to live)? Read this paragraph and choose the correct option from the provided answers: Aerobic prokaryotes live in habitats with oxygen. Anaerobic prokaryotes live in habitats without oxygen. Prokaryotes may also be adapted to habitats that are hot, moderate, or cold in temperature. Choices: - carbon - Hydrogen - nitrogen - oxygen A:
(Answer)
oxygen

Ques: Q: What type of bacteria are sometimes used as weapons of bioterrorism? Read this paragraph and choose the correct option from the provided answers: Choices: - avian - carcinogenic - hypothermic - pathogenic A:
Ans: pathogenic

(Q).
Q: If a quantity of a reactant remains unconsumed after complete reaction has occurred, it is? Read this paragraph and choose the correct option from the provided answers: The stoichiometry of a reaction describes the relative amounts of reactants and products in a balanced chemical equation. A stoichiometric quantity of a reactant is the amount necessary to react completely with the other reactant(s). If a quantity of a reactant remains unconsumed after complete reaction has occurred, it is in excess. The reactant that is consumed first and limits the amount of product(s) that can be obtained is the limiting reactant. To identify the limiting reactant, calculate the number of moles of each reactant present and compare this ratio to the mole ratio of the reactants in the balanced chemical equation. The maximum amount of product(s) that can be obtained in a reaction from a given amount of reactant(s) is the theoretical yield of the reaction. The actual yieldis the amount of product(s) actually obtained in the reaction; it cannot exceed the theoretical yield. The percent yield of a reaction is the ratio of the actual yield to the theoretical yield, expressed as a percentage. Choices: - reduced - static - missing - in excess A:
(A).
in excess

Ques:Q: Changing electric and mnagnetic fields radiate outward when? Read this paragraph and choose the correct option from the provided answers: When charged particles accelerate , changing electric and magnetic fields radiate outward. The traveling electric and magnetic fields of an accelerating (often oscillating) charged particle are known as electromagnetic radiation or light. Choices: - particles lose their charge - particles multiply - firing particles accelerate - charged particles accelerate A:

Ans:charged particles accelerate

Q: Surface tension forces between moleculse cause the surface of liquid to contract to what? Read this paragraph and choose the correct option from the provided answers: Surface Tension Cohesive forces between molecules cause the surface of a liquid to contract to the smallest possible surface area. This general effect is called surface tension. Molecules on the surface are pulled inward by cohesive forces, reducing the surface area. Molecules inside the liquid experience zero net force, since they have neighbors on all sides. Surface Tension Cohesive forces between molecules cause the surface of a liquid to contract to the smallest possible surface area. This general effect is called surface tension. Making Connections: Surface Tension Forces between atoms and molecules underlie the macroscopic effect called surface tension. These attractive forces pull the molecules closer together and tend to minimize the surface area. This is another example of a submicroscopic explanation for a macroscopic phenomenon. The model of a liquid surface acting like a stretched elastic sheet can effectively explain surface tension effects. For example, some insects can walk on water (as opposed to floating in it) as we would walk on a trampolinethey dent the surface as shown in Figure 11.28(a). Figure 11.28(b) shows another example, where a needle rests on a water surface. The iron needle cannot, and does not, float, because its density is greater than that of water. Rather, its weight is supported by forces in the stretched surface that try to make the surface smaller or flatter. If the needle were placed point down on the surface, its weight acting on a smaller area would break the surface, and it would sink. Choices: - typically surface area - Weak Surface area - strongest surface area - smallest surface area A:
smallest surface area