Population Dynamics only quiz

Which statements best describes extinction?

• The death of the last individual of that species.

• The number of different types of organisms in an area.

• The ability to maintain homeostasis and to reproduce.

• The avoidance of death .

Extinctions most often occur where?

• In the ocean

• In the caves

• On islands

• On main continents

How many mass extinctions were there in the past?

• 6 mass extinctions

• 5 mass extinctions

• 4 mass extinctions

• 3 mass extinctions

Which of these was not a reason for the extinctions of species like golden toad, Spix's Macaw, West African black rhinos, and Yangtze River Dolphin?

• Industrialization of factories

• Poaching for animal parts

• Illegal Trade

• Weather changes

Which one represents individual behavior?

• A female polar bear goes into hibernation during the winter months to give birth.

• Monkeys clean each other of dead skin, dirt, and parasites.

• Birds court one another with dances, songs and nest buildings.

• Elephant herds are lead by the oldest and often largest female.

Which one represents group behavior?

• Skunks spray as a defense mechanism when they feel threatened.

• Foxes hunt at night and rest during the day.

• Sardine, when threatened, will create massive school of fish.

• Baby deer hid when adults are away.

The measure of how often babes are being born is called

• Birth rate

• Death rate

• Extinction rate

• Survival rate

The measure of how often organisms die is called

• Birth rate

• Death rate

• Extinction rate

• Survival rate

Which is the best definition of schooling

• A gathering of large group of birds for social/ mating purposes.

• A gathering of large group of land animals for protection or hunting.

• The movement from one region to another depending on the season.

• A group of sea creatures that swims together for protections and social purposes.

Which is the best definition of migration

• A gathering of large group of birds for social/ mating purposes.

• A gathering of large group of land animals for protection or hunting.

• The movement from one region to another depending on the season.

• A group of sea creatures that swims together for protections and social purposes.