Phylogeny is: Group of answer choices

a hypothesis about how organisms thrive in harsh environments

the study of classification

the ancestral relationships of eukaryotes

the evolutionary history of a group of genetically related species

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Construct an explanation about the function of mitosis for multicellular organisms

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.