Microspore mother cells produce microspores. What do microspores then develop into?

A. synergids
B. pollen grains
C. megaspores
D. endosperm
E. egg cells


Answer: B

Biology & Microbiology

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Check all of the features of C. elegans that make it a great model system to study developmental processes.  

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Which of the following is an example of diffusion?

A. movement of individual oxygen molecules from the air to the bloodstream B. movement of large numbers of air molecules into and out of the lungs C. transport of oxygen throughout the body via the circulatory system D. binding of oxygen to hemoglobin within the red blood cells E. movement of oxygen molecules from the lungs to the bloodstream AND movement of large numbers of air molecules into and out of the lungs

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In experiments to show that DNA is the genetic material, Hershey and Chase labeled DNA with radioactive

A) amino acids. B) sulfur. C) phosphorus. D) carbon.

Biology & Microbiology

Which term refers to a special capsule or chamber where a plant will make the first cells of the gametophyte generation?

a. sporangium b. rhizome c. vascular system d. shoot system

Biology & Microbiology