WorksheetsNaturally Selected to Survived
Total questions: 10
Worksheet time: 5mins
According to the text, what happens when organisms cannot adapt to changes in their environment?
Nothing happens.
They move to another environment.
They risk dying out.
They wait for the environment to change again.
What does the author mainly describe in the text?
how natural selection changed the population of peppered moths
how the Industrial Revolution improved the lives of workers
how Charles Darwin devised his theory of natural selection
how humans influence organisms via artificial selection
Smoke given off by the factories threatened the survival of the light gray peppered moths. What evidence from the text best supports this conclusion?
Soot is a black substance that collects on a surface that comes into contact with smoke
When coal burns, it gives off a lot of dark-colored smoke
Predators could see the light gray peppered moths on the black trees covered by soot and easily hunt them down.
The trees began to blacken with soot because of all of the smoke in the air from the factories.
What conclusion can be drawn from the change in population of light gray peppered moths and dark-colored peppered moths?
The color change had nothing to do with the change in environment
There were previously no dark-colored peppered moths.
The lighter peppered moths migrated to a new environment
Darker coloring is currently better for the peppered moth’s survival
What is this text mostly about?
Charles Darwin
the Industrial Revolution
natural selection
Earth's ice ages
Read the following sentences: “In the English countryside near industrialized areas, the trees began to blacken with soot because of all of the smoke in the air from the factories. This made the light gray peppered moths much more vulnerable. Predators could see them on the trees more clearly and easily hunt them down.
”What does “vulnerable” mean?
quick to change
open to attack
easily defended
in a strong position
Choose the answer that best completes the sentence below.
___________ of the smoke given off by coal burned in the factories, the nearby trees became blackened with soot.
On the other hand
Primarily
As an illustration
As a result
What is natural selection?
Natural selection is the number of plants an animals in a ecosystem.
Natural selection is the freedom to choose your own mate.
Natural selection is the process by which species die or live through changes in their environment.
Natural selection is when one organism prey on another.
How did the peppered moth’s environment change, and what caused this change?
The environment changed as the trees became green and covered with spots.
The environment changed as the trees became black and covered in soot. This was caused by the appearance of factories that emitted smoke.
The environment changed as the trees became pink and covered in green.
The environment changed as the leaves fell off the trees.
How did the peppered moth population become mostly dark-colored?
As the light gray peppered moths were eaten by predators, the darker moths survived. These dark-colored peppered moths bred with other dark-colored peppered moths and produced dark offspring that were more likely to survive than light gray peppered moths. Over time the peppered moth population became dark-colored as the light gray peppered moths were dying out.
The light gray peppered moths were eaten by snakes and frogs.
The light gray peppered moths stop breeding and died out.
The dark colored moth died out while the light colored moth became dominate.
