Q: What is the first digestive organ that food enters? Choices: - stomach - tongue - esophagus - mouth A:
mouth

(Question)
Q: Many metals react with acids to produce what gas? Choices: - neon - mercury - helium - hydrogen A:
(Answer)
hydrogen

Ques: Q: What is the most widely used form of renewable energy in the world? Choices: - wind - fossil fuel - solar - hydropower A:
Ans: hydropower

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

Ques:Q: What provides the shape of a cell? Choices: - nucleus - cytoplasm - cellulose - cytoskeleton A:

Ans:cytoskeleton

Q: How are bacteria identified and classified? Choices: - by there movement - by their color - by there cell count - by their shape A:
by their shape