Multiple Choice
Which of the following is necessary to maintain a balanced (stable) ecosystem?
A) Matter (i.e., elements) has to cycle.
B) There must be an outside energy source.
C) Various populations of producers and consumers must be proportional.
D) Energy must be allowed to flow through the ecosystem.
E) All of the answer choices describe necessary factors for maintaining a balanced ecosystem.
Correct Answer:
Verified
Correct Answer:
Verified
Q2: The ultimate source of energy for the
Q3: Which biogeochemical cycle is directly associated with
Q4: Plants obtain nitrogen directly from the air.
Q5: When a plant produces food by photosynthesis,
Q6: Living organisms need phosphate to produce<br>A) DNA.<br>B)
Q8: How are omnivores, carnivores, and herbivores similar?<br>A)
Q9: Which of the following statements inaccurately describes
Q10: Which of the following organisms would be
Q11: In an ecosystem, which of the following
Q12: In a grassland biome, which organism would