What is the most numerous group of animals on earth?

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

What makes a dominant allele different from a recessive allele