Which would most likely be biochemical evidence of evolution? A. Fish, bird, rabbit, and human embryos all have gill slits and tails.
B. Chimpanzees and humans have a similar gene for producing hemoglobin.
c. Digestion in all organisms follows a very similar pathway.
• D. Humans, whales, and bats all have similar looking forelimbs.

the answer is "a.) well–developed vascular system."

explanation:

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.

in the initial assessment of breathing, signs of respiratory distress must be noted (if present), such as the use of accessory muscles for breathing, abdominal breathing and grunting respiration. next, respiratory rate must be observed. increasing breathing rate may be a sign of sickness.