13. At rest, a person has a heart rate of 70 and a stroke volume of 70. The person begins to run and experience tachycardia, but stroke volume remains the same. What statement can you truthfully make? A) cardiac output would increase
B) heart rate would increase
C) ventricular contraction rate would decrease
D) A and B
E) None of the above

7. Select the most accurate statement.
A) Granulocytes consist of basophils, monocytes, erythrocytes
B) Neutrophils are granular lymphocytes
C) Basophils contain histamines
D) A and C
E) None of the above are accurate

20. If a person is out jogging and their stroke volume is 50 while their heart rate is
200; What is their Cardiac output?
A) 1 liter/min
B) 400ml/min
C) 10 liters /min
D) 4liters/min
E) 40mlmin/

What role does differential reproduction play in natural selection? ! a) some organisms have different reproductive success due to nongenetic traits. b) some organisms have traits that them reach reproductive age. c) different methods of reproduction result in some organisms being genetically altered. d) reproduction varies among organisms due to pathogenic factors. the answer is not a or d based on other posts.

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e.g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?