An example of an animal that has a notochord but lacks a backbone is a

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because