Unlike plant cells, animal cells move during development. Which of the following terms describes the reorganization of undifferentiated cells that results in the formation of an embryonic structure with multiple layers?

A. blastulation
B. gastrulation
C. organogenesis
D. cleavage


B

Biology & Microbiology

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Which statement about this diagram is true?



a. The chromosomes of a human egg cell are shown.
b. The colors correspond to chromatin density.
c. The chromosomes arranged by size and order are the karyotype.
d. The chromosomes of a prokaryote cell are shown.

Biology & Microbiology

Pheromones are detected in the ____

a. nasal epithelium b. vomeronasal organ c. olfactory bulb d. thalamus e. cerebral cortex

Biology & Microbiology

Which of the following is a CAM plant?

A) corn B) pine tree C) sugarcane D) lilac E) cactus

Biology & Microbiology

By analogy, a proto-oncogene would correspond to what part of an automobile?

a. gas pedal b. engine c. windshield d. fuel tank e. brake

Biology & Microbiology