The research team also came --------- fragments of ceramics.
about
across
through
over
The first Europeans to travel to the Amazon region ------------ seeing widespread settlements.
informed
reported
notified
announced
There are many eyes looking out ------- danger.
for
The discoveries have added ---------- to the idea the population of the Amazon were much greater than once thought.
size
charge
force
weight
Deforestation has helped reveal evidence, mainly in the ---------- of earthworks.
Pattern
Feature
Model
Form
These accounts were subsequently --------------- as fantasies.
Dispelled
Dismissed
Declined
Denied
An obsession with achieving goals is a common--------- of life in many parts of the world.
point
character
feature
matter
This is a useful skill, given ----- hard it can be to see predators.
how
Birds learn life skills in various ways. .....some of what they know is innate, some is acquired.
While
In one recent study in a ---------- remote region of the Amazon,....
virtually
relatively
practically
roughly
Birds can learn unfamiliar calls,----------- the bird that made that call even being visible.
without
Such a narrow focus can ------ to problems.
cause
lead
result
trigger
People are encouraged to ------- goals and then strive to achieve them.
set
mark
lay
fit
It is believed European diseases arrived in the area ,even before Europeans ever ------- foot in the area.
put
stepped
left
set
Individual birds learn from each other --------- than through direct experience.
Rather
Wrens didn't flee from unfamiliar sounds. But after training, they usually---------- so.
did
Researchers --------- satellite images and identified 81 ancient sites.
sought
scoured
peered
probed
Birds listen to the alarm calls of other species ,---------- it possible for them to take advantage.
making
The sites ---------- from single hamlets to large villages.
lined
covered
graded
ranged
----- the absence of predators, birds can be trained to call for help.
In