The atomic number of an element is always the same as the number of electrons the number of protons the number of neutrons the number of protons plus neutrons

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent  

Which type of landforms forms at the plate boundary as a result of divergent stress