Which is essential for finding the biomass of spinach? a. to calculate the dry weight of the entire spinach plant. b.to calculate the volume of the juice in the spinach plant. c.to calculate the wet weight of the spinach leaves and stem

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.