Some snake embryos have small buds resembling limbs. These buds disappear at later stages of embryonic development. These observations suggest that these snakes – * 1 point will have offspring with limbs. have functional limbs as adults. evolved from a limbed ancestor. had a parent with working limbs.

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Which blood cell spend most of their time in the lymphatic system?

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia