QUESTION 24.1
Tobacoo smoke is inhaled into the lungs. Tar from the smoke is deposited in the lungs and this prevents
the lungs from working properly.
Which one of the following is a function of the lungs!
A) To pump oxygenated blood to all parts of your body
B) To transfer some of the oxygen that you breathe to your blood
C) To purify your blood by reducing the carbon dioxide content to zero
D) To convert carbon dioxide molecules into oxygen molecules.

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.