In plants, which of the following cells is(are)
diploid?
a. egg
b. sperm
c. spore
d. leaf cell
e. spore and leaf cell
D
Biology & Microbiology
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During this stage of mitosis, the chromosomes become attached to the spindle at their kinetochores.
A. Prophase B. Prometaphase C. Metaphase D. Anaphase E. Telophase
Biology & Microbiology
The first fossilized eukaryotes date to about how many years ago?
a. 3.8 billion b. 6,000 c. 2.1 billion d. 1 million e. 1.8 billion
Biology & Microbiology
Determine whether the following statement is true or false: Adenosine triphosphate (ATP) is a crucially important energy carrier in cells.
a. true b. false
Biology & Microbiology
The structure that forms most of the flesh of an apple is the
a) petal. b) ovary. c) stamen. d) carpel. e) sepal.
Biology & Microbiology