A random mutation with no effect on survival

A learned behavior that decreases an organism's fitness

An inherited characteristic that increases an organism's fitness

A temporary change in an organism's environment

A dog learning to fetch

Fish developing fins for swimming

Birds migrating south for the winter

A cat purring when content

Movement in response to sound

Movement in response to touch

Movement in response to temperature

Movement in response to light

By camouflaging with their environment

By using their sharp claws

By spitting blood from their eyes

By emitting a foul odor

It changes color to blend in

It inflates its body to appear larger

It mimics a poisonous animal with its blue tongue

It emits a loud noise to scare predators

The role of urbanization in habitat loss

The impact of pollution on marine life

The influence of human disturbance on wildlife nocturnality

The effect of climate change on animal migration

Species sharing the same habitat

Species being active at different times to avoid competition

Species migrating to different regions

Species avoiding each other in space

They require more food

They can hide more easily

They have a higher metabolism

They need less space and resources

The increase in animal size due to isolation

The phenomenon of species becoming smaller on islands

The adaptation of animals to colder climates

The tendency for animals to grow larger on islands

Difficulty in finding mates

Higher energy requirements

Increased vulnerability to predators

Reduced ability to adapt to environmental changes