Students from Molly's middle school wanted to know if the amount of milk that a cow produces is affected by the cow's age. The students measured the milk from four cows that were 2,4,6,
and 8 years old. They measured how much milk each cow produced each day for four days.
The cows were the same breed, lived on the same farm, and were fed the same amount and
type of hay.
IV:
DV:

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

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.