Q: A sprain is a strain or tear in what part of the body? Choices: - stomach - skeleton - torso - a ligament A:
a ligament

Q: In a pedigree what shape symbolizes males? Choices: - spheres - rectangles - triangles - squares A:
squares

Q: Q: What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body? Choices: - cells immune system - super immune system - immense immune system - innate immune system A:
A: innate immune system

Question: Q: Scientists utilize what natural process to teach cranes born in captivity to migrate along safe routes? Choices: - natural selection - neuroimaging - expediting - imprinting A:
Answer: imprinting

*Question*
Q: What is liquid water falling from the sky called? Choices: - snow - clouds - evaporation - rain A:
**Answer**
rain

(Q).
Q: Unlike nuclear fission, which involves dangerous radioisotopes, nuclear fusion involves what two harmless elements? Choices: - magnesium and helium - hydrogen and oxygen - hydrogen and carbon - hydrogen and helium A:
(A).
hydrogen and helium