(Question)
Q: What is observed when two perpendicular flagella moves? Choices: - turning motion - pushing motion - shaking motion - spinning motion A:
(Answer)
spinning motion

(Question)
Q: What thickens the cortex around the inner edge of a cell? Choices: - mitochondria - vacuoles - plasma membrane - microfilaments A:
(Answer)
microfilaments

(Question)
Q: What do vertebrates possess that is made up of repeating bony units? Choices: - notochord - skull - spinal cord - vertebral column A:
(Answer)
vertebral column