Crows are very smart to find food they often make use of other animals cars in humans for example crows in Japan have been seen dropping hard nuts on crosswalks letting cars crack them open and then waiting for the red light so they can pick up the pieces in North America crows call alpha position of injured deer to wolves after the wolves have eaten a deer Croson fly in to get all the bones why is the best ending to this paragraph

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

the correct answer is d