Question

1. look at the population pyramid on the right. the pyramid shows

a. an expanding population
b. a stable population
c. a declining population
d. you can’t tell from this information

1. based on the population pyramid, it appears that in the last 30 years, fer

a. decreased
b. increased
c. remained the same

1. the population pyramid could possibly be from which country?

a. nigeria
b. india
c. germany
d. afghanistan

1. if the gene pool of two populations are separated, the populations may develop into a new species. t called:

a. natural selection
b. speciation
c. genetic separation
d. interspecific competition

1. the kaibab squirrel became its own species when a small population was isolated on the norther grand canyon. which type of speciation is this?

a. behavioral isolation
b. mechanical isolation
c. temporal isolation
d. geographic isolation
different species of galagos, also known as bushbabies, are found in africa. even though agos share habitats, they cannot interbreed with one another because of their different talia. which type of speciation is this?
. behavioral isolation
mechanical isolation
temporal isolation
geographic isolation
st is discussing two animals’ ability to reproduce with one another. which is ality
ndity
ity

Explanation:

1. An expanding population pyramid has a wide base and narrow top. Since no details about the pyramid are given in - text but assuming a typical expanding - shape visual, it shows more births than deaths over time.
2. If the base of the population pyramid has been getting wider over 30 years, it implies an increase in fertility rates.
3. Nigeria has a high - growth population with a large young population, which is often represented by an expanding population pyramid.
4. Speciation is the process by which new species form when gene pools are separated.
5. The Kaibab squirrel's isolation on the northern Grand Canyon is due to a geographical barrier, which is an example of geographic isolation.

Answer:

1. a. an expanding population
2. b. increased
3. a. Nigeria
4. b. speciation
5. d. geographic isolation