The ______ is photosynthetic and leaflike in many flowers
a. carpel
b. stamen
c. petal
d. sepal
e. stigma
d
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Which of the following diseases is not caused by an obligate intracellular pathogen?
A) chlamydial urethritis B) human monocytic ehrlichiosis C) Rocky Mountain spotted fever D) typhoid fever
The breakdown of larger molecules into smaller ones
What will be an ideal response?
Based on taxonomic ranks, each order is divided into ________
Fill in the blank(s) with correct word
If an egg cell contained EDTA, a chemical that binds calcium and magnesium, what effect would this have on reproduction?
A) The acrosomal reaction would be blocked. B) The fusion of sperm and egg nuclei would be blocked. C) The fast block to polyspermy would not occur. D) The fertilization envelope would not be formed. E) The zygote would not contain maternal and paternal chromosomes.