Protostomes exhibit radial cleavage
____________________ Indicate whether the statement is true or false.
F, spiral
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Oocytes are the largest cells by volume in the human body, reflecting the presence of large amounts of cytoplasm containing (select all correct choices):
A. molecules that direct early cell divisions. B. food in the form of yolk. C. the developing placenta. D. twice the amount of DNA of other cells in the body. E. polar bodies.
What measures can the average citizen take to reduce the likelihood of infection with E. coli or other foodborne organisms?
What will be an ideal response?
From the outside of a tree to its center, which of the following is the correct order of appearance?
1. periderm 2. vascular cambium 3. sapwood 4. secondary phloem 5. cork cambium 6. heartwood
a. 1-2-4-5-6-3 b. 1-5-4-2-3-6 c. 1-4-5-2-6-3 d. 1-3-2-5-4-6 e. 1-2-4-5-3-6
Which term refers to duplication of the complete set of chromosomes in an organism's cell, followed by the separation of the duplicated chromosomes into two new cells?
a. zygote formation b. mitotic cell division c. binary fission d. meiotic cell division