Answer: A total variation of species in a given ecosystem.- Diversity is the answer
Explanation: Something that is able to be passed from a parent to a child- Answer Heredity
Sorry, I cannot see a statement to choose from.
Answer:
Yes
Explanation:
It doesn't matter if you do aA or Aa
Answer:
Clogging engine cooling systems - Bra Mussels
Extinction of bandicoots - Feral Cats
Blocking water boats - Water Hyacinths
Hope this helps :)
The most likely explanation for the variation is the offspring were produced from different combination of genes. A single pair of gold fish mentioned in the question means a male and a female gold fish. The two of them mated and contributed different genes to the fertilized fish eggs, this results in production of various body shape and colouration which is known as variation.