Answer:How does sexual selection affect evolution?
Explanation:
Sexual selection, theory in postulating that the evolution of certain conspicuous physical traits—such as pronounced coloration, increased size, or striking adornments—in animals may grant the possessors of these traits greater success in obtaining mates.
Codons
The mRna bases are grouped into sets of three, called codons. Each codon has a complementary set of bases, called an anticodon.
Answer:
See Explanation
Explanation:
The question is incomplete as the diameters of the Willapa Bay urchins were not given.
However, I'll give a general way to solve this problem.
Average is calculated using:

i.e. Sum of all diameters divided by the number of bay urchins.
The diameter of urchins is usually between 6cm to 12cm; So, I will assume the following diameters for 10 urchins.
10cm, 8cm, 10cm, 7cm, 9cm, 10cm, 6cm, 10cm,8cm, 8cm
Using the above data, the average is:



The choices are:
A. Both remove filtered wastes and reabsorb blood.
B. Both remove undigested food from the body.
C. Both remove urine from the body.
D. Both remove urea from the body.
The correct answer is:
Both remove urea from the body Because for the urinary system, it removes urea and waste through the body through urine. For the skin, it removes urea through sweat. Both are secretions that help rid the body of waste.
Explanation:
Sweat glands in the skin discharge a fluid waste called sweat or exudation; however, its primary functions are heat control and pheromone release. The purpose of the urinary system is to discharge waste from the body, control blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH.both eliminate excess waste from the body.
Answer:
the respiratory system and the circulatory system
Explanation:
the respiratory system brings in the oxygen from breathing but then the circulatory system distributes it thorough out the body thorough capillaries.