Answer the following question given this paragraph: Q: What is the product of microfilament movement powered by chemical energy? Choices: - blood circulation - nerve stimulation - muscle fusion - muscle contraction A:
muscle contraction
(Question)
Answer the following question given this paragraph: Like flowing water, wind picks up and transports particles. Wind carries particles of different sizes in the same ways that water carries them ( Figure below ). Q: How is flowing water and blowing wind similar? Choices: - processes particles - stocks particles - phases particles - transports particles A:
(Answer)
transports particles
Ques: Answer the following question given this paragraph: When done regularly, aerobic activities, such as cycling, make the heart stronger. Other aerobic activities include mowing lawn, shoveling snow and cross country skiing. Q: Cycling, shoveling snow and cross-country skiing are examples of what kind of heart-strengthening activity? Choices: - metabolism - anaerobic - exercise - aerobic A:
Ans: aerobic
(Q).
Answer the following question given this paragraph: Chemistry in Everyday Life Measuring Blood Pressure Blood pressure is measured using a device called a sphygmomanometer (Greek sphygmos = "pulse"). It consists of an inflatable cuff to restrict blood flow, a manometer to measure the pressure, and a method of determining when blood flow begins and when it becomes impeded (Figure 9.6). Since its invention in 1881, it has been an essential medical device. There are many types of sphygmomanometers: manual ones that require a stethoscope and are used by medical professionals; mercury ones, used when the most accuracy is required; less accurate mechanical ones; and digital ones that can be used with little training but that have limitations. When using a sphygmomanometer, the cuff is placed around the upper arm and inflated until blood flow is completely blocked, then slowly released. As the heart beats, blood forced through the arteries causes a rise in pressure. This rise in pressure at which blood flow begins is the systolic pressurethe peak pressure in the cardiac cycle. When the cuff's pressure equals the arterial systolic pressure, blood flows past the cuff, creating audible sounds that can be heard using a stethoscope. This is followed by a decrease in pressure as the heart's ventricles prepare for another beat. As cuff pressure continues to decrease, eventually sound is no longer heard; this is the diastolic pressurethe lowest pressure (resting phase) in the cardiac cycle. Blood pressure units from a sphygmomanometer are in terms of millimeters of mercury (mm Hg). Q: What is used to measure blood pressure? Choices: - anemometer - spectrometer - barometer - sphygmomanometer A:
(A).
sphygmomanometer
Ques:Answer the following question given this paragraph: Figure 28.41 All crustaceans go through different larval stages. Shown are (a) the nauplius larval stage of a tadpole shrimp, (b) the cypris larval stage of a barnacle, and (c) the zoea larval stage of a green crab. (credit a: modification of work by USGS; credit b: modification of work by M. Mingorance Rodriguez; credit c: modification of work by B. Kimmel based on original work by Ernst Haeckel). Q: What goes through different larval stages? Choices: - octopuses - plants - sponges - crustaceans A:

Ans:crustaceans
Answer the following question given this paragraph: Waves are characterized by their repetitive motion. Imagine a toy boat riding the waves in a wave pool. As the water wave passes under the boat, it moves up and down in a regular and repeated fashion. While the wave travels horizontally, the boat only travels vertically up and down. The Figure below shows two examples of waves. Q: What kind of motion characterizes waves? Choices: - round - breathing - bending - repetitive A:
repetitive