Phospholipids have two distinct polarities. The phosphate head is always polar, while the two "tails" it has are nonpolar.
The frequency of radiation from a Cesium-133 atom is 9,192,631,770 cycle/s
=
×
cycles/s
The number of cycles of radiation in one second is
×
The number of cycles during 1 mosquito wing beat,
i.e., the number of cycles in 
=
×

=
×
Learn more about radiation
brainly.com/question/24469662
#SPJ4
1.Beak for catching prey
2.Wings to fly away from danger
3. Ability to balance
Answer:
l need the choseises to pick the correct one
Answer:
Lived during the time of dinosaurs.
Explanation:
Both types of trees have existed since the time of dinosaurs or earlier.