Answer:
Adaptations and selective breeding, if that is a choice for you.
Explanation:
B. Absolute dating uses the half-life of an element
Absolute dating is a technique that uses radioactive minerals present in rocks and fossils while relative dating compare the sample in terms of age difference. However, absolute dating is more accurate because it uses half-life of an element and provides dates in years.
Answer
Gametes that fertilize an ovum are called the sperms
Explanation
The reproductive cells of an organism are called the gametes or sex cells. Female sex cells are the ova/egg where as male sex cells are the sperms. The sperms are stored in the scrotum after their production in the male testes where as the eggs for females mature in female ovaries. During fertilization, sex cells meet in the Fallopian tube.
DNA is made of a double helix of two complementary strands. When replicating, these strands seperate. Each strand of the original DNA then acts as a template for the production of it's counterpart, which is referred to as semiconservative replication.