All living things are either Eukarya or Bacteria or Archeae What are the three broadest categories in the classification of life called

(A) kingdom
(B) orders
(C) domains
(D) species

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.