Endosperm is
A. sperm after it has entered the archegonium.
B. nutritive tissue produced within antheridia.
C. sperm cells enclosed within pollen grains.
D. tissue stored in seeds that provides nutrition for embryos.
E. sperm produced at the end of the flowering season.
D. tissue stored in seeds that provides nutrition for embryos.
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When light strikes the rod cell, it becomes ____ and glutamate release onto bipolar cells ______.
A. depolarized, decreases B. depolarized, increases C. hyperpolarized, decreases D. hyperpolarized, increases E. excited, increases
In a hypotonic solution, what happens to mammalian cells such as red blood cells?
a. shrink due to water loss b. stay the same size due to water moving in and out at the same rate c. swell due to water gain d. apoptosis
Make a sketch showing how nondisjunction in meiosis can result in Down syndrome. What will be an ideal response?
The stage of virus infection called (assembly/entry/synthesis) is the stage most dependent on host cell proteins
What will be an ideal response?