Answer:
Birds, mammals, bony fish
B. False
Answer:
B. False
Explanation:
Windrow composting is the process to recycle organic scrap into organic fertilizer. Windrow composting provides large amounts of organic materials to be composted, having a geometrical pattern ranging from 2-4 m wide and 2-3 m high at the starting of the Windrow composting process. In Windrow Composting the most important thing is that it delivers water vapor, heat, and gases, and restores also.
The gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. The gray frog was abundant in the woodlands. Because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. In such a case, the
.
The gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. This suggests that speciation occurred because of
.
Answer:
the speciation of the gray tree frog and the green tree frog in the given scenario is likely a result of natural selection caused by the change in habitat from woodlands to grasslands, leading to differences in their mating calls.
Explanation:
the change in the environment from woodlands to grasslands due to climatic changes led to speciation, resulting in the gray tree frog and the green tree frog having different mating calls. This suggests that speciation occurred because of natural selection.
Here's an explanation of how this process might have occurred:
1. Initially, both the gray tree frog and the green tree frog shared a common ancestor and had similar mating calls.
2. When the climatic changes caused most of the trees in the region to die, the woodlands transformed into grasslands.
3. This change in habitat created a new selective pressure on the tree frogs. The gray tree frogs, which were adapted to the trees in the woodlands, faced difficulties surviving in the new grassland environment.
4. However, the green tree frogs, which had a broader habitat range and could survive in both woodlands and grasslands, were better suited to the new environment.
5. Over time, the gray tree frog population in the grasslands declined, while the green tree frog population thrived.
6. As the populations became isolated from each other, natural selection acted on the genetic variations present within each population.
7. The different mating calls between the gray tree frog and the green tree frog might have developed as a result of sexual selection. Frogs with mating calls that were most attractive or effective in their respective environments were more likely to reproduce and pass on their genetic traits.
8. Eventually, the genetic differences between the gray tree frog and the green tree frog became significant enough that they were considered separate species
B. Active transport is the only form of transport that requires the use of protein carriers.
C. Active transport requires the cell to expend energy, while passive transport does not.
The difference between active transport and passive transport is that active transport requires the cell to expend energy, while passive transport does not, which is option C.
Cell membranes are selectively permeable barriers that allow certain materials to pass through while blocking others. In order to cross the membrane, materials move through transport processes. There are two main types of transport: active and passive. Passive transport is the movement of materials across the cell membrane without the input of energy. This includes diffusion, osmosis, and facilitated diffusion. These processes are driven by a concentration gradient, which is the difference in concentration of a substance between two areas. Active transport, on the other hand, is the movement of materials across the cell membrane that requires the cell to expend energy.
Hence, the difference between active transport and passive transport is that active transport requires the cell to expend energy, while passive transport does not, which is option C.
Learn more about active transport and passive transport here.
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B: adaption
C: acquired characteristics
D: tendency towards perfection