<h2>Answer:</h2>
The speciation occurred <u>because of different mating calls.</u>
<h3>Explanation:</h3>
- Speciation is an evolutionary process which occurs when one group of specie evolve due to climate change into distinct specie.
- According to this concept, the gray frogs will change into a distinct specie and they will not evolve to frogs, living in grasslands.
- Basically, the one feature of the specie which prevents them to merge into the same specie of other population is the cause of speciation.
<u>Answer:</u>
An example of non-renewable source of energy would be C) Nuclear power.
<u>Explanation:</u>
Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy. Biomass refers to organic material from plants or animals, whilst Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy. Once these resources are used up, they cannot be replaced, which is a major problem for humanity as we are currently dependent on them to supply most of our energy needs.
I hope this helps! Have a great day! -Olli :]
First there is Sexual Intercourse, then if the sperm fertilises the egg, then an embryo is formed
<span>Triassic - first mammals evolve
Jurassic - dinosaurs become common in many areas
Cretasceous - flowering plants evolve
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The answer is b when a cold air mass invades a warm air mass