Answer the following question given this paragraph: The smallest particle of an element that still has the properties of that element is the atom . Atoms actually consist of smaller particles, including protons and electrons, but these smaller particles are the same for all elements. All the atoms of an element are like one another, and are different from the atoms of all other elements. For example, the atoms of each element have a unique number of protons. Q: What is the smallest part of an element called? Choices: - core - neutron - nucleus - atom A:
atom
(Question)
Answer the following question given this paragraph: 28.2 Simultaneity And Time Dilation Two events are defined to be simultaneous if an observer measures them as occurring at the same time. They are not necessarily simultaneous to all observerssimultaneity is not absolute. Time dilation is the phenomenon of time passing slower for an observer who is moving relative to another observer. Observers moving at a relative velocity v do not measure the same elapsed time for an event. Proper time t 0 is the time measured by an observer at rest relative to the event being observed. Proper time is related to the time by an Earth-bound observer by the equation. Q: Two events are defined to be simultaneous if an observer measures them as occurring at what? Choices: - midnight - opposite times - different times - same time A:
(Answer)
same time
Ques: Answer the following question given this paragraph: One seismogram indicates the distance to the epicenter. This is determined by the P-and S-wave arrival times. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. The longer the time is between the P-and S-wave arrivals, the further away the earthquake was from the seismograph. First, seismologists calculate the arrival time difference. Then they know the distance to the epicenter from that seismograph. Q: One seismogram indicates the distance to the what? Choices: - researchers - houses - the moon - epicenter A:
Ans: epicenter
(Q).
Answer the following question given this paragraph: Regional metamorphism occurs over a large area when a rock is buried or compressed. Q: What occurs over a large area when a rock is buried or compressed? Choices: - metamorphic diffusion - cavern system - landslide - regional metamorphism A:
(A).
regional metamorphism
Ques:Answer the following question given this paragraph: Chromosomes, like those shown here, must form prior to cell division, to ensure that each daughter cell receives a complete set of genetic material. Each chromosome is made of two identical sister chromatids. Each chromatid is 1/2 of the "X. " Essentially, each daughter cell receives half of each "X-shaped" chromosome. Q: Each what is made of two identical sister chromatids? Choices: - helix - genome - gene - chromosome A:

Ans:chromosome
Answer the following question given this paragraph: Platelets ( Figure below ) are very small, but they are very important in blood clotting. Platelets are not cells. They are sticky little pieces of larger cells. Platelets bud off large cells that stay in the bone marrow. When a blood vessel gets cut, platelets stick to the injured areas. They release chemicals called clotting factors, which cause proteins to form over the wound. This web of proteins catches red blood cells and forms a clot. This clot stops more blood from leaving the body through the cut blood vessel. The clot also stops bacteria from entering the body. Platelets survive in the blood for ten days before they are removed by the liver and spleen. Q: What part of blood releases clotting factors? Choices: - hemoglobin - white blood cells - erythrocytes - platelets A:
platelets