Again :)))))
Calcium oxide:
II II
Ca O ---> CaO
water ---> H₂O
CaO + H₂O -----> Ca(OH)₂
velocity= distance / time
your distance is 180 miles
your time is 3 hours
180 divided by 3 = 60
Answer:
<u>
They have hydrophilic heads and hydrophobic tails.</u>
Explanation:
Phospholipid membranes are comprised of a chain of lipids. These typically are arranged in a bilayer; the hydrophilic lipid heads are polar, and face outwards, while the hydrophobic tails are polar facing inwards.
The membranes are selectively permeable, and only allow the movement of small, non-polar molecules through the bilayer.
I believe vestigial structures are evidence of evolution because organisms inherit anatomy from their ancestors.
Hope that helps.
sensation
Sensation can be defined as
the activation of sensory receptor cells by the stimulus. However, the
processing of the sensory stimuli into a meaningful pattern can refer to as
perception. Thus, not all sensation is usually perceived but perception is
dependent on sensation.
