Answer the following question given this paragraph: All living things are capable of reproduction. Reproduction is the process by which living things give rise to offspring. Reproducing may be as simple as a single cell dividing to form two daughter cells. Generally, however, it is much more complicated. Nonetheless, whether a living thing is a huge whale or a microscopic bacterium, it is capable of reproduction. Q: What is the process called in which living things produce offspring? Choices: - variation - photosynthesis - diversification - reproduction A:
reproduction
Answer the following question given this paragraph: 10.3 Muscle Fiber Contraction and Relaxation A sarcomere is the smallest contractile portion of a muscle. Myofibrils are composed of thick and thin filaments. Thick filaments are composed of the protein myosin; thin filaments are composed of the protein actin. Troponin and tropomyosin are regulatory proteins. Muscle contraction is described by the sliding filament model of contraction. ACh is the neurotransmitter that binds at the neuromuscular junction (NMJ) to trigger depolarization, and an action potential travels along the sarcolemma to trigger calcium release from SR. The actin sites are exposed after Ca++ enters the sarcoplasm from its SR storage to activate the troponin-tropomyosin complex so that the tropomyosin shifts away from the sites. The cross-bridging of myposin heads docking into actin-binding sites is followed by the "power stroke"the sliding of the thin filaments by thick filaments. The power strokes are powered by ATP. Ultimately, the sarcomeres, myofibrils, and muscle fibers shorten to produce movement. Q: What is the smallest contractile portion of a muscle? Choices: - filaments - cell - capillary - sarcomere A:
sarcomere
Q: Answer the following question given this paragraph: Electrons are negatively charged particles in atoms. Moving electrons have a form of kinetic energy called electrical energy . If you've ever experienced an electric outage, then you know how hard it is to get by without electrical energy. Most of the electrical energy we use is produced by power plants and arrives in our homes through wires. Two other sources of electrical energy are pictured in Figure below . Q: Moving electrons have a form of kinetic energy called what? Choices: - potential energy - electromagnetism - deformed energy - electrical energy A:
A: electrical energy
Question: Answer the following question given this paragraph: Identify features caused by groundwater erosion and deposition. Q: Water infiltrates the ground because soil and rock may have air spaces between the grains. these pores, or tiny holes, result in the rock's what? Choices: - sheen - energy - shine - porosity A:
Answer: porosity
*Question*
Answer the following question given this paragraph: Cooling or evaporation of fresh water from the sea surface makes surface water dense. This causes the surface water to undergo downwelling. Q: Cooling or evaporation of what from the sea surface makes surface water dense? Choices: - dirty water - salt water - warm water - fresh water A:
**Answer**
fresh water
(Question)
Answer the following question given this paragraph: Waves cause the rippled surface of the ocean. Q: What cause the rippled surface of the ocean? Choices: - winds - tides - earthquakes - waves A:
(Answer)
waves