1) Each cell of the muscles of a certain bug contain 28 chromosomes. b. How many chromosomes are in the digestive tract cells of a female bug of the same species?
c. How many are in her egg cells?
d. How many are in a fertilized egg?

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

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer