Exam 33: Putting Selection to Work

In which areas did the plants from which tomatoes were domesticated grow?

Converting native habitats to produce biofuels generates 17 to 420 times more CO₂ than the habitats normally produce.

When were cattle domesticated?

At least four species of cotton have been domesticated: two haploid species and two tetraploid species.

Define molecular farming.

How do we know that a cultivated species has NOT yet been domesticated?

The precursor of the main active ingredient in aspirin is salicylic acid, which is obtained from the bark of oak trees.

Which plant is the common weed Queen Anne's lace easily confused with?

How many people died from malaria in 2008?

The squash Cucurbita argyrosperma appears to have been domesticated from Cucurbita sororia.

When organisms reproduce asexually, domestication may occur more slowly.

In how many environmentally and biotically diverse areas in the world has domestication arisen?

The humped cattle Bos indicus is one variety of domesticated cattle.

Which animal was among the first to be domesticated?

Diploid species of cotton were domesticated from the Old World.

How many years passed between the time Chinese scientists discovered that qinghao could be used to treat malaria and the time the discovery was reported to the world?

When did Chinese scientists discover the effectiveness of qinghao in treating malaria?

Collecting runoff water and storing it in cisterns makes farming possible in areas with little and highly seasonal rainfall.

Who were the first domesticators of cattle?

Canadians must be concerned that the energy return on investment on the tar sands is less than 5:1 without taking into consideration the water consumed by the process.