AP Biology Population

Loboville is an island of 4000 square miles off the coast ot Los Amigos. There are currently 250,000 inhabitants of Loboville. Last year, there were 12,000 new children born and 10,000 people were recorded as deceased. Calculate the birth rate of Loboville (round to the tenths place).

Loboville is an island of 4000 square miles off the coast ot Los Amigos. There are currently 250,000 inhabitants of Loboville. Last year, there were 12,000 new children born and 10,000 people were recorded as deceased. Calculate the death rate of Loboville (round to the tenths place).

Tags

NGSS.MS-LS2-1

Loboville is an island of 4000 square miles off the coast ot Los Amigos. There are currently 250,000 inhabitants of Loboville. Last year, there were 12,000 new children born and 10,000 people were recorded as deceased. Calculate the doubling time for Loboville (round to the nearest whole number).

In 2012, there were 20 births per 1,000 people and 5 deaths per 1,000 people in Peru. Calculate the approximate doubling time of Peru's populaiton.

• 5 years

• 15 years

• 47 years

• 72 years

Which of the following populations is most likely to go extinct?

• a very small population in an unstable environment

• a moderate-sized population of r strategists

• a large population with lots of genetic variability

• all would be equally likely to go extinct

Tags

NGSS.HS-LS4-5

The town of Fremont has a population of 2,000. In 2019, the town has 50 deaths, 20 immigrants, and 30 emigrants. The town's population growth rate is 4.5%. Calculate the crude birth rate in 2019.

• 70

• 75

• 95

• 105

Loboville is an island of 4,000 square miles off the coast ot Los Amigos. There are currently 250,000 inhabitants of Loboville. Last year, there were 12,000 new children born and 10,000 people were recorded as deceased. Calculate the current population density (round to the nearest whole number).

In a population of spiders there are three different sizes: small, medium, and large.
---The large spiders are easily seen by predators.
---Small spiders have a difficult time finding food.
What will most likely happen to this population of spiders after many generations?

• Small and large spiders will mutate

• Medium spiders will be the most plentiful

• Large spiders will learn to hide from predators

• Small and medium spiders will be the least plentiful

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

The habitat of a moth species included trees with both light and dark colored bark. Therefore the moth species included both light and dark colored variants. Then the light-colored trees were wiped out by a disease, and within a few years nearly all the moths in this forest were dark colored. Which of the following choices BEST explains what happened?

• The light moths that survived all had dark offspring in order to adapt to the change.

• The dark moths were less visible to predators, so mostly light moths were eaten.

• The few light moths that survived did not mate, and therefore they had no offspring.

• The light moths changed their wing pigments to darker colors to avoid being eaten.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Charles Darwin noticed that birds of the Galapagos Islands were very similar in size and shape but their beaks were very different. What is the explanation for birds having different beaks? 

• gathering food

• building nest

• fighting

• scaring predators

Tags

NGSS.MS-LS4-2