What prevents a neutron star from completely collapsing upon itself

What is a codon and where is it found

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.