Question 17 The minimum stream velocity necessary to transport a sediment particle that is 01 centimeter in diameter is closest to

0.1 cm/s

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important