1. Protein Coat 2. Nucleic Acid
An organism that feeds on plant matter is a herbivore.
Answer:
In favourable environments you might find birds laying more eggs, and a greater likelihood of multiple successful clutches. There are also birds like Bald Eagles, that start mating in early January and can lay eggs before Spring officially comes. 13. Food Availability. The amount of food available has an affect on bird mating cycles.
Explanation:
The two substances needed in this situation are:
potato extract and catechol<span />
