While aboard the HMS Beagle, Darwin made observations that supported claims
made by other scientists whose books Darwin read. Match each scientist's claim
to an observation that supports it.
Lamarck claimed that
organisms pass charac-
teristics on to
offspring.
a. Darwin noted that a
plant produced many
seedlings, but only a
few of the seedlings
reach adulthood.
Lyell claimed that geo-
logic processes gradu-
ally change Earth's
surface.
b. Darwin observed layers
of rock exposed by
many years of erosion.
Hutton claimed that
Earth is very old.
c. Darwin gathered fossils
from organisms that
lived many thousands
of years ago.
Malthus claimed that
humans compete for
resources because
there are not enough
resources for every
individual.
d. Darwin noted that a gull
on the Galapagos
Islands resembled its
ancestors from South
America.