The presence of the ________ chromosome means that a person will probably appear to be male
Fill in the blank(s) with correct word
Y
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Why is external water not essential for fertilization in seed plants?
A. The sperm cells in seed plants are capable of resisting desiccation. B. Seed plants use pollen instead of sperm for fertilization. C. Pollen grains are transported by wind or an animal. D. Sperm cells are used to transport pollen to the archegonia. E. Ovules are contained within the pollen.
Lyme disease is only seen in people living in Lyme, Connecticut.
Answer the following statement true (T) or false (F)
Early classification systems of the bacteria employed all of the following characteristics except
A. sporulation or binary fission. B. rRNA sequences. C. the ability to photosynthesize. D. motility. E. colony or filament forming.
What makes a water molecule polar?
What will be an ideal response?