Ques: Q: What type of microscope is used to see extremely small objects? Choices: - optical microscope - X-ray microscope - ultrasonic microscope - electron microscope A:
Ans: electron microscope

Ques: Q: Competition between members of the same species is known as? Choices: - interspecies competition - egregious competition - nuchal competition - intraspecific competition A:
Ans: intraspecific competition

Ques: Q: What effect in the atmosphere ensures that the earth maintains the correct temperature to support life? Choices: - coriolis effect - ozone effect - smog effect - greenhouse effect A:
Ans: greenhouse effect

Ques: Q: Living organisms release carbon dioxide into the atmosphere by what method? Choices: - genomic respiration - widespread respiration - major respiration - cellular respiration A:
Ans:
cellular respiration