The reading passage and the lecture both discusses about the possible explanation to the decline of sea otters. According to the passage the root cause to this rapid decline is environmental pollution. In contrast, professor believes that this is caused due to attacks by predators. She proves her point by refuting each of the claims made in the reading.
First reason passage provides is there can be found sources of pollutants along the Alaskans coast, like oil rigs and there for argues that this environmental hazard is due to the pollution. Professor disagree with this point by stating that, there should be dead bodies of sea otters if they were died due to pollution and there is no such evidence has been found up to date. Furthermore she argues that this is due to predators hunt them and they eat them. She states that this coincide with the evidence found.
Secondly, passage states that there is a decline in other sea mammals and this can only possible if the pollution hypothesis is true. However professor states that, this declination can explain by predatory behavior of Orca. With the disappearance of whales, orca used to hunt other sea mammals and she claims that this explains the reason for declination of whole sea mammals.
Finally, reading explains about the uneven pattern of otter decline can be explained using pollution hypothesis and states that this is due to non-uniform distribution of pollutant. The professor contradicts with this point by saying that this pattern is not random. Moreover she explains that shallow sea do not show decline and other areas show rapid decline. She argue that this is due to predators like orca are significantly large animals and therefore they hunts only in non shallow regions.
In conclusion, the passage and lecture both try to prove two contradictory theories to explain declination of sea otters. Reading supports the pollution hypothesis, meanwhile professor champion predatory hypothesis.
The reading
passage
and the lecture both discusses about the possible explanation to the
decline
of
sea
otters. According to the
passage
the root cause to this rapid
decline
is environmental
pollution
.
In contrast
,
professor
believes that this
is caused
due
to attacks by predators. She proves her point by refuting each of the claims made in the reading.
First
reason
passage
provides is there can
be found
sources of pollutants along the Alaskans coast, like oil rigs and there for argues that this environmental hazard is
due
to the
pollution
.
Professor
disagree with this point by stating that, there should be dead bodies of
sea
otters if they were
died
due
to
pollution
and there is no such evidence has
been found
up to date.
Furthermore
she argues that this is
due
to predators hunt
them and
they eat them. She
states
that
this coincide
with the evidence found.
Secondly
,
passage
states
that there is a
decline
in other
sea
mammals and this can
only
possible if the
pollution
hypothesis
is true.
However
professor
states
that, this declination can
explain
by predatory behavior of Orca. With the disappearance of whales, orca
used
to hunt other
sea
mammals and
she claims that this
explains
the reason for declination of whole
sea
mammals.
Finally
, reading
explains
about the uneven pattern of otter
decline
can be
explained
using
pollution
hypothesis
and
states
that this is
due
to non-uniform distribution of pollutant. The
professor
contradicts with this point by saying that this pattern is not random.
Moreover
she
explains
that shallow
sea
do not
show
decline
and other areas
show
rapid
decline
. She
argue
that this is
due
to predators like orca are
significantly
large animals and
therefore
they
hunts
only
in
non shallow
regions.
In conclusion
, the
passage
and lecture both try to prove two contradictory theories to
explain
declination of
sea
otters. Reading supports the
pollution
hypothesis
, meanwhile
professor
champion predatory
hypothesis
.