Which extraembryonic membrane lies immediately beneath the shell of a reptile embryo?
A) Allantois B) Chorion C) Amnion D) Yolk sac E) Placenta
B
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The fruits of legumes:
A. are fleshy and sweet and are dispersed by birds B. are winged and dispersed by wind C. split down both sides and the seeds fall out D. have corky hulls that make them buoyant and are dispersed by water E. have hooks that cling to mammals and are dispersed by them
Human vertebrae are held together by ____ joints
a. synovial b. cartilaginous c. fibrous d. both fibrous and cartilaginous e. both synovial and fibrous
Which biome has the fewest kinds of species?
a. tundra b. taiga c. grassland d. desert e. It is not possible to determine this based on the information provided.
Which of the following makes up most of an old tree trunk?
A) Secondary phloem B) Primary phloem C) Vascular cambium D) Primary xylem E) Secondary xylem