Activity 40: Natural Selection
ELABORATE: Adaptations and fitness (page 176) (Student's edition)
Echolocating vertebrates (not mammals)
In the teacher's edition, there has been a clarification to the answer (clarification in bold).
Q21. The echolocation of oilbirds is not as well developed as that of bats. This may be because it is a relatively recent innovation in a lineage separate to that of mammals or because it is not essential to the bird's lifestyle.
Activity 79: Climate Change page 363
Second sentence below the image of the glaciers should read
"It is experiencing ice thinning and rapid recession, with the fastest rates of recession recorded between 2001 to 2011."
This error is not present in the Digital Edition or Teacher's Digital Edition
Activity 92:Fractions and ratios - Page 406
Q3 Answer includes a typo (20/60 instead of 40/60) Working should read
(5 ∕ 20 x 3 = 15 ∕ 60) + (5 ∕ 12 x 5 = 25 ∕ 60) = 40 ∕ 60 = 2 ∕ 3. 2 ∕ 3 ÷ 2 = 1 ∕ 3
Please advise that we have found some minor numbering errors for the currently circulating Teacher's Editions and some printings of the student edition on pages 25, 62, 111-112, 184, 223, 290-293, 298, 306, 319-320, and 395-396. These for a result of last minute changes to activities for which we apologize.