Lily visits her family doctor because she experiences an upset stomach after drinking milk. the doctor tells her that this symptom is caused by a lack of the enzyme lactase. lactase breaks down lactose, the sugar in milk which is made of several parts. what does lactose break down into? a. monosaccharides b. amino acids c. fatty acids d. nucleotides

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.