Which of the following statements about membrane lipids is true?
a. glycerophospholipids contain 2 fatty acids linked to c-1 and c-3 of glycerol.
b. all sphingolipids are glycolipids that lack phosphate groups.
c. galactolipids have 1 or 2 galactose residues connected to glycerol by glycosidic linkages and are predominate in plant cells.
d. sphingolipids are composed of 1 sphingosine (or its derivative), 2 fatty acids, and 1 polar head group.
e. archaea contain membrane lipids that contain 2 long alkyl chains ester-linked to glycerol at both ends.

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

What is the role of the phospholipid belayer in cellular transport in living cells