Answer:
Genes are made of DNA and are carried on chromosomes
Explanation:
1. courtship rituals 2. attract a mate 3. internal fertalisation occurs inside the feamales body whereas external fertalisation occurs outside the feamales body 4. <span>Gametes may get washed away 5. the devoloping zygote is protected</span>
Answer:
it has many years on it
Explanation:
it is old so it is not new