Here are the answers to your statements:
A. True - Yeast, hydra, starfish, and bacteria can all reproduce asexually.
B. False - Asexual reproduction can allow organisms to thrive in various environments, not just static ecosystems. It is often advantageous in stable conditions but can also allow rapid colonization of new areas.
C. False - Asexual reproduction typically results in genetically identical offspring from a single parent, not genetically varied offspring.
D. True - The types of asexual reproduction include binary fission, budding, fragmentation, vegetative propagation, and sporogenesis.
So, the answers are:
A - True
B - False
C - False
D - True