Chapter 1. Countercurrent Exchange

Introduction

Animation

Question 1.1

8x35jAxCLpUy4KMYkRLVWCC8VVJXJr2OZjJLOjXW5j4NOMuHU8AE6TWGAbmkdQaMogrBkjnC59mSkSraWSyNuXUOnNtcUFxtoF7UbcoSvbnm/y/kp7US6IteAf1mDTpeOU8Q9xoVVZIni3JSYTmu2fmFn8jAfmzND+JNmp+9BfPJmgdYAogzLLBVKO32LPnz0gMQ3nMQC2oXGfjb1oxelWZGF9fUwtT8aUhA2T/Oc0w08bRvBxKBH0iiIcHpaqTLs1c6ycnjrRj7dgfeDYuJbq9oEelLGkJGIIGLR1isksG8adLD9OZgKi1pasZ3A/Pq4A9ab1h112WmBJRbq+BkCQAtzTqTR+qTSCPzAjuzyMwd14R0x47Keg==
Correct.
Incorrect.

Question 1.2

w+sPPKLvgc/C1XT0cseveG6TaZpqVwZZSZ19u9dSLD0u32LYkHofhNtQg2gR9ZmLnOEP4frakroA+yT79lmim/knzQoFvofYGxZdV73nQE4aXhOHApOJHTdARSDXAJNXKxonIP/MwT7MlI2Lhcw0pK51Fe0yJJxczskzatzsAnbsZGjHGg2rbERqGWpRgIFxiXAH4vRD1Dxjlvw5NftObrcwyylfo1nPm1nRdYXML5Xx7jtG2HAhfoDN7gamzby5tQpkZAd1wETqm6PT8FKvoxx8wN6iwVlxG2H/SivAK3bz65qQAMg6JogrcynYOBu1JnikHcoGTkkHjZaR50rMTFNDpI+Kkbu4YUS+ucRL42pm+R3jHpfhsgnsfr+AOx5VHe0mf+bO0LllD+D54DRJsYHSHYxBi45XHm/FO+lAonmo045QTv6BGtVZw4zA7wAyde3EMw==
Correct.
Incorrect.

Question 1.3

X/nVEKtOb8nfOAj5oi2RqxAxYJj9gkopyEfPoIKc4fuClqwplu32ynaOgGQrVQwiQuSx8VmVvxl8X6TaQuLIXZliJKJk9xD8Ol9LjC9bEeFfJMRURW5SsESgE3mYG/0SFQbvENA7T2dIVJzxcyaciYDRPbBBRYsMkcady3KM7BYaWQj1/NCRfG9+irEvAk2ZCGxxXaSouO3Izr/SxFYwQaahESK1CvF9bXcNjiQCEJLLL57iZH7Po/HYjo+7T24vMBLn9k7p80dHYkr9YHKs6oEMBm4MjBsl2+af6svGP7Q/yziyRQ0OP9A9NSfYCn9GEp0VVQuUSq53MT2y1/CMtkHl4m6lwyX5OmBwym5ZFR/d0TOkPnoyGg==
Correct.
Incorrect.

Question 1.4

r+TtBGZS8XavRUJqpZC10jb8E36X4npa/mvAJEPXkBqdyxmc0oMQbua5Jzr1/B850yEW1fnTsyV2jf0YSGWCjepDWdN3HncHvHJTqqXionpDso9Zv6dAGGyZuxuY6F2LaGe5XgiGd2jJtrGTfjEDt5+QfXC7oLydA4om6MGOfN+I42Jnbp6LbdJr6MB8zEw/OWO2tIf9hD7VqkVFBI//WEvBy9UlMcRuwpkpjRXrhNoRfVNJ26xzLvu82MUhOdmdMvAv3mjmWl+2Flmcggt2YiYC9SCKIEzCn1HfKGI6lgV/Jarw02eeULkzbXjOsj3AnaL1k9IU6/HS+hN4VFa7ri17f4JpGe3G2agMHTJd693VmN9bkPI8Xq0P96huPyeNezvWdVq4dJrWdDeVVLolGbim+B3oD5zgsfiYsZrKw7aDLGu0/3U88Q6dAhzOhqCfLDdZKA==
Correct.
Incorrect.

Activity results are being submitted...