Living Environment State Lab Questions

In certain years, the Galapagos plants produce many tube-shaped flowers rich in nectar. Identify the finch that is best adapted to feed on the nectar within those flowers. Support your answer.

The cactus finch has a probing bill that can reach the nectar in the flowers.

Which two living species would be expected to have the most similar proteins?

E and F

Explain why glucose molecules can cross a cell membrane and starch molecules can not.

Starch is a bigger molecule

Which row correctly pairs a finch species with its primary nutritional role and bill type?

warbler finch probing bill carnivore

The locations of molecules A and B at the beginning of the experiment are shown. Which statement best describes what was observed when the setup was examined 20 minutes later?

Only molecule A was found both inside and outside the artificial cell

The number of small tree finches is increasing on an island inhabited by a large population of small ground finches. State one reason why the population of small ground finches has not been affected by the increasing number of small tree finches.

They aren't competing for the same food.

State one way the two molecules could differ that would explain the difference in their ability to pass through the artificial plant cell membrane.

They could be different sizes.

Which statement correctly explains the rise of liquid in the tube at the end of the experiment?

Water entered the bag due to the lower concentration of water inside. The extra water pushed the liquid up the tube as the bag filled.

A certain small population of finches already has an "ideal" beak type for its present environment. Describe two specifi c adaptations, other than beak type, that would contribute to the ability of these fi nches to survive

ability to produce more offspring and resistance to diseases in the area

Which procedure is represented in the diagram?

adding salt solution to a specimen under the cover glass

Scientists recently discovered that three different types of squid, a marine animal, previously thought to be three different species, were actually all members of one species. Their earlier ideas were based on using squid carcasses (dead bodies). The new, more accepted classification is most probably based on an analysis of

the DNA present in the cells of squid