For a species of large abalone

Answer choices

1. A

   Unrelated to Goal2% picked this

   Otters and abalones also compete for the same types of food and so are drawn

   This isn't connecting the arrival of the otters to a change in the abalone species in regards to ... - less energy on finding food - less energy avoiding predators - more energy competing for mates

   2%
2. B

   Unrelated to Goal2% picked this

   The fossils that were studied showed the development of only one of the two species of large

   This isn't connecting the arrival of the otters to a change in the abalone species in regards to ... - less energy on finding food - less energy avoiding predators - more energy competing for mates We don't care whether this large abalone species we're trying to explain is one of only two large abalone species or one of a thousand.

   2%
3. C

   Correct85% picked this

   Otters also prey on the abalones' competitors for food and so indirectly make it easier for

   Why this is right

   This certainly doesn't fully explain how larger abalones developed, but it helps to resolve the confusion. It connects the ascendancy of the otters to one of the three changes that go along with the development of larger abalone: - less energy on finding food - less energy avoiding predators - more energy competing for mates It says that otters indirectly make it easier for abalones to get food.

   Skill tested: Paradox · how this choice captures the argument's function is the move to repeat next time.

   85%
4. D

   Unrelated to Goal4% picked this

   Small abalone species tend to reproduce more rapidly than larger

   This isn't connecting the arrival of the otters to a change in the abalone species in regards to ... - less energy on finding food - less energy avoiding predators - more energy competing for mates

   4%
5. E

   Cheats a Background Fact7% picked this

   Otters have a preference for large abalones over small ones and so prefer waters in which

   This answer provides a potential story in which large abalone develop and then otters move in, because they love those big abalones more than the small ones. But we were told that the species of large abalone developed from a smaller one only after otters moved in and began to dominate. Otter moved into these waters. There were only small abalones when the otters moved in. The otters began to dominate. They prey on abalones. Yet, somehow a species of larger abalone developed. This answer isn't helping us with that mysterious final fact at all.

   7%