Freshly deposited in the vagina are incapable of penetrating an oocyte. 2. as sperm travel through the corona radiata, secretions of the cervix, uterus and uterine tubes capacitate the sperm by making their membranes more fragile and capable of releasing enzymes. 3. when capacitated sperm a secondary oocyte, they are able to weave past granulosa cells of the with the aid of hyaluronidase enzymes present on their surface.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

explanation:

the answer is d. none of the above