The diagram below illustrates a theory on how giraffes may have developed their long necks. Original, short-necked Keeps stretching neck Continues stretching Long-necked
ancestor
to reach leaves higher until neck becomes descendant after
up on tree
longer
many generations
Which of the following questions, if answered, would help us understand whether the theory illustrated in the diagram is supported by genetics?
O A. Do these giraffes reproduce sexually or asexually?
O B. Can a behavior, such as stretching a body part, be part of the giraffe's DNA?

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

A60-tooth gear is connected to a 72-tooth gear.if the smaller gear turns 12 times,how many turns does the larger gear make?

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.