Spores are produced in the ________ of a fern.

a) archegonia
b) sporangium
c) ovary
d) antheridia
e) ovule


Ans: b) sporangium

Biology & Microbiology

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What is the likely impact of this toxin on action potentials?  

A.  They will occur more frequently. B.  They will be stronger and more unpredictable. C.  Without ion gradients, action potentials are not possible. D.  They will have longer refractory periods. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about sodium and potassium? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?  

Biology & Microbiology

Schizophrenia means "split ________."

A) ends B) mind C) personality D) emotions

Biology & Microbiology

Live birth is characteristic of:

a. marsupials only b. monotremes only c. placentals only d. marsupials and placentals e. birds only

Biology & Microbiology

The phenomenon in which different-sized gaps in corridors allow certain organisms to cross and restrict others is referred to as the ________ effect

Fill in the blank(s) with correct word

Biology & Microbiology