The reading and the lecture both are about the agnostids. The author of the reading provides near possibilities about agnostids and the way they lived. The lecturer challenges all the claims made by the author and illustrates them in the subsequent paragraphs.
Firstly, the author mentions that the agnostids are free-swimming predators because primitive arthropods were strong swimmers and predators. They thought the same with the agnostids, as they were primitive arthropods relatives. However, the tutor argues that the predators usually have large well-developed eyes, but in the case of agnostids some have tiny developed eyes and some were blind. Additionally, she says that in order to have predator quality, it should have special sensory organs to locate prey. since those special organs are not found in relation to the agnostids. This clearly shows that they are not predators.
Secondly, the writer mentions that the agnostids may have dwelled on the seafloor because of primitive arthropods were living that way. On top of it, the passage mentions that they might have survived by scavenging dead organisms or bacteria. The professor refutes this by saying that the sea swelling organisms will move slowly on the seafloor and stay in a localised area. Moreover, they occur in a small geographic location and no where they can be found. On the other hand, the agnostids were spread over larger distances and also moved very fast. The seafloor dwelling organisms moving fast is unusual. This information proves that the agnostids were not sea-dwelling organisms.
Finally, the article posits that the agnostids were parasites and used to feed on larger organisms. This thought is bought because many arthropods of modern-day exist as parasites. On the contrary, the academician tells that parasite populations have to stay in certain limits on larger animals because there might be a chance of killing them if they feed on too much. Though, populations of agnostids were large so that they cannot fit into the category of parasites. By this feature, we came to know that the agnostids are not parasites.
The reading and the lecture both are about the
agnostids
. The author of the reading provides near possibilities about
agnostids
and the way they
lived
.
The
lecturer challenges all the claims made by the author and illustrates them in the subsequent paragraphs.
Firstly
, the author mentions that the
agnostids
are free-swimming predators
because
primitive
arthropods
were strong swimmers and predators. They
thought
the same with the
agnostids
, as they were primitive
arthropods
relatives.
However
, the tutor argues that the predators
usually
have large well-developed eyes,
but
in the case of
agnostids
some
have tiny developed eyes and
some
were blind.
Additionally
, she says that in order to have predator quality, it should have special sensory organs to locate prey.
since
those special organs are not found in relation to the
agnostids
. This
clearly
shows
that they are not predators.
Secondly
, the writer mentions that the
agnostids
may have
dwelled
on the seafloor
because
of primitive
arthropods
were living that way. On top of it, the passage mentions that they might have survived by scavenging dead
organisms
or bacteria. The professor refutes this by saying that the sea swelling
organisms
will
move
slowly
on the seafloor and stay in a
localised
area.
Moreover
, they occur in a
small
geographic location and
no
where they can
be found
.
On the other hand
, the
agnostids
were spread
over larger distances and
also
moved
very
fast
. The seafloor dwelling
organisms
moving
fast
is unusual. This information proves that the
agnostids
were not sea-dwelling organisms.
Finally
, the article posits that the
agnostids
were parasites and
used
to feed on larger
organisms
. This
thought
is
bought
because
many
arthropods
of modern-day exist as parasites.
On the contrary
, the academician
tells
that parasite populations
have to
stay in certain limits on larger animals
because
there might be a chance of killing them if they feed on too much. Though, populations of
agnostids
were large
so
that they cannot fit into the category of parasites. By this feature, we came to know that the
agnostids
are not parasites.