A A lack of exercise made them appear older.
В Their cells remained the same as they aged.
C Their cells were unaffected by changes in diet.
The tu I к is most
lik e ly a b o u t r e s e a r c h clo ne on
1
.
T h e t a l k w ill p r o b a b ly
mention
2
,
a n d
2 What new discovery have scientists made about
pigeons?
A They use the Earth's magnetic field to navigate.
В Their beak plays an important role when flying.
C A part of their ear helps them find their way.
Duniuj
t h i s t a lk , w e w ill p r o b a b ly h e a r a b o u t
what we already
k n o w a b o u t
3
a s w e ll a s s o m e
4
in f o r m a t io n . 1
n e e d to lis t e n fo r w h e t h e r p iy e o n s
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