What level of taxonomy is Parameciidae Cells rotate while swimming and have oral grooves?

A) Kingdom
B) Family
C) Phylum
D) Genus
E) Species


Ans: B) Family

Biology & Microbiology

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Which of the following would occur if a cell's splicesomes were mutated so they no longer functioned normally?

A. Introns would remain in the mature mRNA. B. Exons would be missing in the mature mRNA. C. Transcription would cease. D. A functional protein would still be produced. E. RNA processing would remain intact.

Biology & Microbiology

Stems and roots grow in length by the addition of new cells produced in

A. companion cells B. apical meristems C. leaves D. dermal tissue

Biology & Microbiology

The ________ is an organelle in which some of the proteins synthesized on ribosomes and rough ER are modified and packaged

Fill in the blank(s) with correct word

Biology & Microbiology

Luteinizing hormone (LH) triggers ovulation in females. What is its role in males?

A. It exists in rudimentary levels since LH is made by the anterior pituitary. B. It controls production of testosterone. C. It does not exist since males lack ovaries. D. It is exactly the opposite chemical from male hormones, in an antibody-antigen fashion.

Biology & Microbiology