Answer:
A. A year of drought followed by four years of average or above-average rain
Explanation:
In the first year the Finches population goes down drastically meaning that a disaster must have occurred that would negatively affect the population, a drought. The next four years the Finch population increases steadily so the average rainfall must have been average or above average according to the graph.
Answer:
b. it helps the owl avoid being hunted.
It can see clearly using the nocturnal vision and hence escape predators and find prey.
If an animal is having a well developed skeleton system, a backbone then it belongs to vertebrate. Also, size is an important factor to identify vertebrate and invertebrate.
Explanation:
Vertebrates have a well developed skeleton system and backbone. Their skeleton system is made up of bones and cartilage. While, invertebrates don't have any backbone.
Due to lack of backbone or skeleton system, invertebrates are small in size. As there is no proper mechanism to support large body so invertebrates are small in size and also they move very slowly. This is also a major difference in vertebrate and invertebrate.
Another important difference between vertebrate and invertebrate is that body of vertebrate is covered with some structure like hair, feathers, skin, scales or a combination of these.
These features help to distinguish vertebrate from invertebrate by observing them, no need to dissect.
The answer have to be ( B )
Because in his book , " Origin of species " he doesn't mentioned anything about the origin of man kind. But only implied certain points , most likely about the evolutionary process :)
I believe that Urbanization in the world's peripheral regions is the result of rural out migration. Urbanization is the increasing concentration of population into growing metropolitan areas. Urbanization of peripheral regions has been as a result of the growth in the demography that proceeded economic development.
