Nasa is developing a space plane called x-33. describe it.

List two modern organisms that have pentameral symmetry

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center