Video Transcript
Ducks have webbed feet to help them
swim through water in which they search for food. Select the bird from the following
pictures that is also well adapted to search for food in water.
You may remember that an adaptation
is a characteristic of an organism that makes it well suited to its environment. Here, we are looking at an
adaptation that is a physical characteristic, or a structural adaptation. The specific structural adaptation
we are told about is the webbed feet of ducks. And we are told how those webbed
feet are useful for the ducks. They help the ducks swim through
water, where they look for food. We can gather from this that webbed
feet are a structural adaptation for swimming through water and that other species
that have adapted to swimming through water therefore may well have similar
structures.
So, when the question asks us to
select a bird that is well adapted to search for food in water based on its picture,
we must be looking for physical characteristics, or structural adaptations, similar
to those of the duck. Specifically, we should be looking
for the webbed feet that the question drew our attention to. The only one of the birds in the
answer choices that has webbed feet is the one indicated here by (D). With these webbed feet, presumably
it is well adapted to swim through the water searching for food, just as the duck
is.
So, the correct answer to this
question is (D). The bird shown that is also well
adapted to search for food in water is the one indicated here by the letter (D).
