Q: The vivid colors of flowers are an adaptation designed to encourage what by animals such as insects and birds? Read this paragraph and choose the correct option from the provided answers: Figure 26.13 These flowers grow in a botanical garden border in Bellevue, WA. Flowering plants dominate terrestrial landscapes. The vivid colors of flowers are an adaptation to pollination by animals such as insects and birds. (credit: Myriam Feldman). Choices: - eating - consumption - flowering - pollination A:
pollination

(Question)
Q: Mycorrhizae functions as a physical barrier to what? Read this paragraph and choose the correct option from the provided answers: Mycorrhizae: The Symbiotic Relationship between Fungi and Roots A nutrient depletion zone can develop when there is rapid soil solution uptake, low nutrient concentration, low diffusion rate, or low soil moisture. These conditions are very common; therefore, most plants rely on fungi to facilitate the uptake of minerals from the soil. Fungi form symbiotic associations called mycorrhizae with plant roots, in which the fungi actually are integrated into the physical structure of the root. The fungi colonize the living root tissue during active plant growth. Through mycorrhization, the plant obtains mainly phosphate and other minerals, such as zinc and copper, from the soil. The fungus obtains nutrients, such as sugars, from the plant root (Figure 31.11). Mycorrhizae help increase the surface area of the plant root system because hyphae, which are narrow, can spread beyond the nutrient depletion zone. Hyphae can grow into small soil pores that allow access to phosphorus that would otherwise be unavailable to the plant. The beneficial effect on the plant is best observed in poor soils. The benefit to fungi is that they can obtain up to 20 percent of the total carbon accessed by plants. Mycorrhizae functions as a physical barrier to pathogens. It also provides an induction of generalized host defense mechanisms, and sometimes involves production of antibiotic compounds by the fungi. Choices: - parasites - bacteria - vaccines - pathogens A:
(Answer)
pathogens

Ques: Q: What do you call a pure substance that cannot be broken down into different types of substances? Read this paragraph and choose the correct option from the provided answers: An element is a pure substance that cannot be broken down into different types of substances. There are almost 120 known elements ( Figure below ), each with its own personality. The chemical and physical properties of one element differ from any other. Elements are arranged according to their properties in the Periodic Table . Choices: - molecule - sample - compound - element A:
Ans: element

(Q).
Q: What is a shortage of water that causes the soil to dry from the surface down called? Read this paragraph and choose the correct option from the provided answers: Choices: - overflowage - tidal wave - flood - drought A:
(A).
drought

Ques:Q: What are the two loops of blood flow in the cardiovascular system? Read this paragraph and choose the correct option from the provided answers: The cardiovascular system circulates blood through two different loops. Pulmonary circulation is a loop that carries blood between the heart and lungs. Systemic circulation is a loop that carries blood between the heart and the rest of the body. Choices: - anabolic and metabolic - aerobic and anaerobic - systolic and diastolic - pulmonary and systemic A:

Ans:pulmonary and systemic

Q: What do you call the electrons in the outermost energy level of an atom? Read this paragraph and choose the correct option from the provided answers: Electrons in the outermost energy level of an atom are called valence electrons. They determine many of the properties of an atom, including how reactive it is. Choices: - Inner electrons - shell electrons - Proper electrons - valence electrons A:
valence electrons