Answer the following question given this paragraph: Q: What can lead to a loss of genetic variation within populations? Choices: - migration - adaptation - natural selection - genetic drift A:
genetic drift
(Question)
Answer the following question given this paragraph: Q: What type of stress causes horizontal motions in strike-slip faults? Choices: - hot - cold - blunt - shear A:
(Answer)
shear
Ques: Answer the following question given this paragraph: If you were to filter out all the cells in blood, a golden-yellow liquid would be left behind. Plasma is this fluid part of the blood. Plasma is about 90% water and about 10% dissolved proteins, glucose, ions, hormones, and gases. Blood is made up mostly of plasma. Q: If you were to filter out all the cells in blood, you would be left with what golden-yellow liquid? Choices: - platelets - pus - hemoglobin - plasma A:
Ans: plasma
(Q).
Answer the following question given this paragraph: Learned behaviors are adaptive because they are flexible. They can change if the environment changes. Q: What kind of behaviors are adaptive because they are flexible, capable of changing if the environment changes? Choices: - passed behavior - studied behavior - human - learned behavior A:
(A).
learned behavior
Ques:Answer the following question given this paragraph: Alpha decay occurs when an unstable nucleus emits an alpha particle and energy. The diagram in Figure below represents alpha decay. An alpha particle contains two protons and two neutrons, giving it a charge of +2. A helium nucleus has two protons and two neutrons, so an alpha particle is represented in nuclear equations by the symbol . The superscript 4 is the mass number (2 protons + 2 neutrons). The subscript 2 is the charge of the particle as well as the number of protons. Q: What occurs when an unstable nucleus emits an alpha particle and energy? Choices: - radar decay - nucleus decay - alpha radition - alpha decay A:

Ans:alpha decay
Ques:Answer the following question given this paragraph: The orbits of the planets are elliptical. Q: What shape is the orbit of a planet? Choices: - cleaved - vertical - spiral - elliptical A:

Ans:
elliptical