The lipid layer that forms the foundation of cell membranes is primarily composed of molecules called ________.
A. proteins
B. carbohydrates
C. fats
D. phospholipids
Answer: D
You might also like to view...
The F2 phenotypic ratio of 9:3:4, as shown above, is a result of a cross involving
a. two genes expressing complete dominance. b. a gene expressing dominance and another gene expressing codominance. c. two genes expressing codominance. d. epistasis, in which one gene modifies the expression of the other gene. e. multiple alleles.
Genome analysis has revealed that horizontal gene transfer is frequently mediated by phages.
Answer the following statement true (T) or false (F)
What is the most widely accepted and supported model for explaining the movement of phloem sap in flowering plants?
a. the translocation mechanism b. the pressure-flow mechanism c. the transpiration mechanism d. the cohesion-tension mechanism
Some protists have complex life cycles and change between the haploid and diploid state. This process is observed in a member of the Stramenopiles, the ________ algae.
Fill in the blank(s) with the appropriate word(s).