What is the expected percentage of the world’s population living in cities by 2050?
A) 50%
B) 60%
C) 66%
D) 75%
C) 66%
6. How have anoles (a species of lizard) adapted to city life?
A) They started hunting insects more often
B) They developed longer legs and sticky feet
C) They became nocturnal
D) They changed their diet completely
B) They developed longer legs and sticky feet
By 2050, nearly __ of the world's population will live in cities.
two-thirds
Evolution occurs when __ in genes help animals survive and pass the trait to the next generation.
mutations
By 2007, more than half of the world’s population lived in cities.
true
What adaptation have foxes made in cities?
A) Hunting smaller animals
B) Becoming more aggressive
C) Hunting at night
D) Living on rooftops
C) Hunting at night
7. Why have cliff swallows evolved shorter wings?
A) To fly faster
B) To escape from predators
C) To avoid traffic accidents
D) To migrate more easily
C) To avoid traffic accidents
Some animals, such as peregrine falcons, adapt well because they don’t need to change their __ much.
habits
Anoles, a species of __, developed longer legs and sticky feet to climb smooth surfaces.
lizard
Peregrine falcons build nests inside skyscrapers.
false
Why do some animals find it easier to live in cities?
A) They have more space to move around
B) There are fewer predators and more food sources
C) They live in protected environments
D) People feed them regularly
B) There are fewer predators and more food sources
What problem do city roads create for some land animals?
A) They block access to food sources
B) They reduce their gene diversity
C) They increase predator attacks
D) They make animals migrate to new areas
B) They reduce their gene diversity
Foxes have learned to hunt at __ to avoid people and cars.
night
Many swallows with __ wings could not avoid cars and died.
long
Some animals have a harder time adapting to city life than others.
true
How do city crows in Akita, Japan, crack nuts?
A) They use their beaks
B) They drop them on the ground near driving schools
C) They wait for people to break them
D) They throw them against walls
B) They drop them on the ground near driving schools
How have white-footed mice adapted to city life?
A) They learned to hunt for food
B) They process fatty food and survive in polluted areas
C) They became stronger and bigger
D) They live in groups to protect themselves
B) They process fatty food and survive in polluted areas
Crows in Japan drop __ near driving schools so cars can break them open.
nuts
City parks can limit __ for smaller animals, leading to different evolutionary changes in each park.
terretory
Urban foxes hunt smaller animals because there is less food in cities.
n.g
What is a key reason urban birds have larger families?
A) They have more food and safety
B) They do not have natural enemies
C) They live in nests provided by humans
D) They migrate to better places
A) They have more food and safety
What is surprising about recent evolutionary changes in animals?
A) They are happening much faster than expected
B) They only affect large animals
C) They do not influence reproduction
D) They are not visible in physical changes
A) They are happening much faster than expected
In cities, animals tend to have __ and more frequent families.
larger
White-footed mice have evolved to process __ and tolerate polluted environments in cities.
fatty junk food
City crows have larger brains than wild crows.
n.g