The process by which a sperm and an egg are united is called _____________
Fill in the blank(s) with the appropriate word(s)
Answer: Fertilization
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An autotroph is likely to convert CO2 into reduced organic carbon in order to produce precursor metabolites.
Answer the following statement true (T) or false (F)
Distinguish between manipulative experiments and natural experiments
What will be an ideal response?
T cells that bind to the antigen-MHC complexes of
dendritic cells become activated and later a. produce antibodies. b. become NK cells. c. bind to B macrophages activating them. d. differentiate into helper T cells and memory T cells. e. activate complement
What causes the furrow during cleavage?
A) It is a depression caused by the formation of a new cell wall. B) A ring of contractile protein fibers pinches the cell in two. C) Connecting proteins that had been binding adjacent cells together now dissolve. D) A loss of water occurs.