Cell division in the apical meristems at the tips of a plant that results in increases in height or length is called
A. primary growth.
B. secondary growth.
C. vascular cambium growth.
D. mitotic growth.
E. herbaceous growth.
A. primary growth.
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________ is the process by which internal and external structures of cells and organisms are preserved and maintained in position.
Fill in the blank(s) with the appropriate word(s).
Why is the absence of bone in Chondrichthyes considered a derived trait?
What will be an ideal response?
A male is tested for cellular abnormalities. The technician notes that there are two Barr bodies present within each of the patient's cells. This indicates that his chromosome complement is most likely
A) XY. B) XO. C) XXX. D) XXY. E) XXXY.
The smallest cells in the domain Bacteria are:
A) viruses B) archaea C) mycoplasma D) cyanobacteria