Adaptations. Laboratory work 4
Answers are for parents and teachers.
1
Give one example each of protective colouring, camouflage and warning colouring.
Protective colouring – white hare in winter; camouflage – stick insect; warning colouring – ladybird.
2
Write four adaptive traits from the outer and inner structure of fish in a table.
Streamlined body – movement; fins – steering; gills – respiration; lateral line – sensing flow.
3
Name three adaptations of the camel to the desert.
Fat reserve in the hump, water economy, broad feet for walking on sand, long eyelashes protecting from sand (any three).
4
A ptarmigan is white in winter and brown in summer. Why might selection have shaped this trait?
The background colour changes with the season; predators find individuals matching the background less often, so they leave more offspring.
5
40 of 200 butterflies have warning colouring. What percent is this? (Number only.)
20