How to use in-sentence of “ova”:
+ Young girls do not start producing ova and menstruating until they have reached puberty.
+ The ova were fertilised by free-swimming sperm produced by windborne miniatuarised male gametophytes in the form of pre-pollen.
+ When a sperm and ova combine to form a fertilised egg, the baby may get either of these chromosomes from its father.
+ In zoology, an animal which can produce both sperm and ova is a hermaphrodite.
+ Scallops release Spermatozoa and ova freely into the water during the mating season.
+ The third and final OVA started on April 25, 2008.
