Which of the following is a possible function of a protein? (2 points)
long-term energy storage
insulating organisms
storing genetic information
sending signals across the organism

Explain why phospholipid molecules form a bilayer. (3 marks)

What does natural resource management aim at ?

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.