These puppies belong to the same parents but do not resemble either the parents or each other. What is a possible reason for this?

A) They have been produced sexually.
B) They have been produced asexually.
Eliminate
C) They have grown up in different ways.
D) They have been produced at different times.

answer:

A).they have been produced sexually

the electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, x-rays, and gamma-rays.

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.