“Toilet training” children involves their control of the

1.internal urethral sphincter.
2.urinary bladder.
3.kidneys.
4.Bowman’s capsule.
5.external urethral sphincter.


5

Biology & Microbiology

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Atoms with atomic numbers between lithium and neon have two energy levels

Indicate whether the statement is true or false.

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In the process of quorum sensing, bacteria release signal molecules in _____ concentration as cell

density _____.

a. increasing; decreases d. decreasing; decreases b. increasing; increases e. a constant; increases c. decreasing; increases

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How many chromosomes are there in an unfertilized maize (corn) egg cell nucleus as compared to a maize (corn) pollen cell nucleus?

A) half as many B) twice as many C) the same number

Biology & Microbiology

The final product of transcription, after modifications, is called __________

a. complementary gene sequence b. pre-mRNA c. mature mRNA d. remodeled mRNA e. primary mRNA

Biology & Microbiology