Answer:
b. they are both asymmetrical. Placozoans have endoderm and ectoderm while sponges have no tissue.
Answer:
A
Explanation:
Examples of mass wasting are slides, falls, creeps, and flows. Mass wasting processes are easily observable because they happen fast and suddenly and the changes are vividly evident in very short bit of time. However, other methods of erosion such as mechanical and physical weathering occur very slowly and it would take many years for the changes associated wth their proceses to be vivid to the naked eye.
Answer: This material will interact when the galaxies collide. ... There is also friction between the gas in the colliding galaxies, causing shock waves that can trigger some star formation in the galaxies. These processes can radically affect the galaxies. For example, two spiral galaxies can merge to form an elliptical galaxy.
I think C, because genetic variation enables some individuals to adapt to the environment while maintaining the survival of the population
