Answer the following question given this paragraph: To keep their flight muscles well supplied with oxygen, birds evolved specialized respiratory and circulatory systems. Birds have special air sacs for storing extra air and pumping it into the lungs. They also have a relatively large heart and a rapid heart rate. These adaptations keep plenty of oxygenated blood circulating to the flight muscles. Q: Birds have a relatively large heart and a rapid what? Choices: - lifespan - blink rate - digestive process - heart rate A:
heart rate
(Question)
Answer the following question given this paragraph: Q: What forms the pathway of water and nutrients from roots to leaves and flower? Choices: - the stamen - the stigma - the pistil - the stem A:
(Answer)
the stem
Ques: Answer the following question given this paragraph: A mycorrhiza (Greek for "fungus roots") is a symbiotic association between a fungus and the roots of a plant. In a mycorrhizal association, the fungus may colonize the roots of a host plant by either growing directly into the root cells, or by growing around the root cells. This association provides the fungus with relatively constant and direct access to glucose, which the plant produces by photosynthesis. The mycelia of the fungi increase the surface area of the plant's root system. The larger surface area improves water and mineral nutrient absorption from the soil. Q: A mycorrhiza refers to what kind of relationship between a fungus and the roots of a plant? Choices: - predator-prey - semantic - familial - symbiotic A:
Ans: symbiotic
(Q).
Answer the following question given this paragraph: Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Q: Name the missing type of friction: static, rolling, fluid _____? Choices: - falling - turning - dragging - sliding A:
(A).
sliding
Ques:Answer the following question given this paragraph: In a pedigree, squares symbolize males, and circles represent females. A horizontal line joining a male and female indicates that the couple had offspring. Vertical lines indicate offspring which are listed left to right, in order of birth. Shading of the circle or square indicates an individual who has the trait being traced. The inheritance of the recessive trait is being traced. A is the dominant allele and a is recessive. An "affected" individual has the trait or characteristic (or disease) in question. Q: In a pedigree what shape symbolizes males? Choices: - spheres - rectangles - triangles - squares A:

Ans:squares
Question: Answer the following question given this paragraph: Halogens have filled valence electron configurations. Halogens tend to form salts with metals. As the free elements, halogens are monatomic. Halogens have appreciable nonmetallic character. Halogens tend to have an oxidation state of 1. Halogens are good reductants. Q: Halogens tend to form salts with what type of element? Choices: - nonmetals - metalloids - man-made - metals A:
Answer:
metals