Which type of chromosomal disorder seems to have the greatest affect on a person's health - disorders involding autosomes or sex chromosome?

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods. c. it shows that these organisms share the same habitat. d. it provides evidence that these organisms suffered a genetic mutation.

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient