Multiple Choice
Ozone in the outer layer of the atmosphere has important consequences for living things in that it:
A) is a pollutant.
B) is involved directly in respiration.
C) aids in the aggregation of molecules.
D) absorbs ultraviolet rays from sunlight.
E) is used by autotrophs to make sugars.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: The evolution of the seed was important
Q2: Cytology is the study of:<br>A)energy transformations.<br>B)plant form.<br>C)heredity.<br>D)fossil
Q3: Proteinoid microspheres provide evidence that organic molecules
Q4: In annuals, the stem becomes woody and
Q6: Which of the following statements concerning the
Q7: Perennials have a life-span of only one
Q8: A plant must first exhibit primary growth
Q9: Humans first appeared about _ years ago.<br>A)2000<br>B)200,000<br>C)2
Q10: Eukaryotic cells evolved before prokaryotic cells.
Q11: On the early Earth, hydrothermal vents provided