What dose the 'a' in front of asexual mean?

Asexual is where somebody does not experience sexual attraction. Although, there is something very interesting. An asexual person does not experience sexual attraction but they still desire romantic relationships. This means that they're still looking for that strong bond with another person, but they're just not interested in the sexual activity.

answer: 2

explanation:

yes

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.