. If a kestrel eats a mouse that eats grass, the kestrel is a (1 point)producer.
second-level consumer.
first-level consumer.
decomposer.
2. Which of the following best explains why a species of lizard is able to live in the desert but not in tundra regions? (1 point)High average air temperatures are critical to the lizard’s survival.
A dry environment is critical to the lizard’s survival.
A lot of light exposure is critical to the lizard’s survival.
Low humidity is critical to the lizard’s survival.
3. Which of the following land biomes is correctly matched to its characteristic abiotic factors? (1 point)boreal forest—hot, wet, humid
grassland—dry, hot days, cold nights
deciduous forest—moderate temperatures and rainfall
desert—warm, wet, poor soil
4. Which of the following factors is used to distinguish the two main aquatic biomes? (1 point)number of producers
strength of water currents
quantity of dissolved oxygen
salt levels
Sorry nobody answered. There was a malfunction in the system in 2014. :(
1.b
2.a
3.c
4.d
5.c
6.d
7.b
8.b
9.a
10.c
Tysm @a living microwave on youtube!! you are correct!! all my answers were right, just checking. :)
1. To determine the correct answer, we need to understand the roles of the organisms mentioned in the question. In an ecological context, producers are organisms that can make their own food through photosynthesis or chemosynthesis. First-level consumers are organisms that directly feed on producers, while second-level consumers feed on first-level consumers. Decomposers break down dead organic matter and recycle nutrients back into the ecosystem.
In this scenario, the kestrel is a bird that eats a mouse, which in turn eats grass. Grass is the producer in this food chain as it can produce its own food through photosynthesis. Since the kestrel is consuming the mouse, which indirectly relies on the grass for its energy, the kestrel is considered a second-level consumer. Therefore, the correct answer is "second-level consumer."
2. To determine the correct answer, we need to identify the critical factor that enables the lizard's survival in the desert but not in tundra regions.
Option 1 states that high average air temperatures are critical to the lizard's survival. This may be true, but it does not explain why the lizard cannot survive in tundra regions, which can also have low temperatures.
Option 2 states that a dry environment is critical to the lizard's survival. This is the most suitable explanation as deserts are known for their arid and dry conditions, which might be necessary for the lizard's survival. Tundra regions, on the other hand, can be wet and have a high water content, which may not be suitable for the lizard.
Option 3 states that a lot of light exposure is critical to the lizard's survival. While light exposure may play a role in the lizard's survival, it does not explain why it cannot live in tundra regions.
Option 4 states that low humidity is critical to the lizard's survival. Low humidity is more commonly associated with desert regions, while tundra regions can have higher humidity levels. Therefore, this option provides a plausible explanation.
Based on these explanations, the most appropriate answer would be "A dry environment is critical to the lizard's survival."
3. To determine the correct answer, we need to match the land biome with its characteristic abiotic factors.
The boreal forest is characterized by cold temperatures and moderate rainfall, so it is not correctly matched with "hot, wet, humid."
Grassland is characterized by dry environments, with hot days and cold nights, so it is correctly matched with "dry, hot days, cold nights."
The deciduous forest is characterized by moderate temperatures and rainfall, so it is correctly matched with "moderate temperatures and rainfall."
The desert is characterized by hot temperatures and low rainfall, so it is not correctly matched with "warm, wet, poor soil."
Based on these explanations, the correct answer would be "grassland—dry, hot days, cold nights."
4. To determine the correct answer, we need to identify the factor that distinguishes the two main aquatic biomes.
The number of producers is not used to distinguish the two main aquatic biomes, as both freshwater and marine environments can have a diverse range of producers.
The strength of water currents can vary in both freshwater and marine environments, so it is not a distinguishing factor.
The quantity of dissolved oxygen can vary in both freshwater and marine environments, so it is not a distinguishing factor.
The salt levels in the water are a crucial distinguishing factor between freshwater and marine biomes. Freshwater biomes have low salt levels, while marine biomes have high salt levels. Therefore, the correct answer is "salt levels."