Vertebrates have a notochord, dorsal nerve cord, and gill slits at some point during embryonic development.
True
False

There are six elements that make up most of the human body. which of the following is not one of these six elements?

Biology 1c cumulative exam i need awsners

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.