Ais an organism whose cells contain complex, membrane-bound structures called organelles. a. mitochondrion b. eukaryote c. nucleus d. vacuole

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

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

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