When epiblast cells travel through the primitive streak and underneath the epiblast layer, that movement is described as
A. capacitation.
B. invagination.
C. chemotaxation.
D. cleavage.
B
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The spinal cord is ________ to the esophagus.
A. posterior B. anterior C. inferior D. ventral
The range of motion as well as the direction of motion for the various regions of the spine differs. For example the lumbar spine is capable of flexion and extension but little rotational movement
While the thoracic spine rotates with little flexion or extension. This is due to variation in ________. A) the orientation of the superior and inferior articular facets B) the composition of the intervertebral disks C) the arrangement of muscular attachment to the spinous processes D) the thickness of the intervertebral disc
What type of chemical messenger will act locally on nearby cells?
A. paracrine B. neurotransmitter C. autocrine D. endocrine
Lysosomes
1.form by budding from the Golgi complex. 2.contain 30 different oxidative enzymes. 3.are smaller than peroxisomes. 4.are intricately involved in translation. 5.Both 1 and 2 are correct.