Which of the following were described as flight adaptations on birds by Mr. Attenborough as he held the Golden Eagle?
a reduced and lighter hip structure
all of the answers are correct
air filled bones with struts and columns inside
contains only one finger, rather than five

How many major plates cover the earth

Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.

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.