What is happening with mumps on a cellular level.

To determine if a particular plant is homozygous or heterozygous, you would have to test cross with a

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

Which of the following organisms are capable of self-fertilization? a. plants b. tigers c. humans