Which of the following is a component of healthy soil ecosystems? a. fungi b. bacteria c. nematodes d. all of the above i'm pretty sure it is just the others wouldn't really make the ecosystem "healthy"

Describe how alleles and genes are related

Acommon kind of mechanical weathering is called

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.