Organisms And Environment Worsksheets Page 5

11. Based on the observation data and dichotomous key above, what is the correct identification

for the three arachnids? (7.11A)

a. Scorpion, whipscorpion, and wind scorpion

b. Scorpion, whipscorpion, and daddy long legs

c. Scorpion, daddy long legs, and tick

d. Whipscorpion, wind scorpion, and daddy long legs

12. The diagram below shows four species of birds that evolved from an ancestral species that

had a small, pointed beak. Today, all four species inhabit the same island.

Which statement best explains the variation in the beaks of these four species? (7.11C)

a. Over time, an abundance of seeds for food led to increased similarities between the

species

b. Over time, an abundance of seeds for food led to increased differences between the

species

c. Competition for limited food resources led to selection for similar traits

d. Competition for limited food resources led to selection for different traits

0 votes

Parent category: Education