In vascular plants, xylem and phloem are only present in the sporophyte generation

A. true
B. false


A

Biology & Microbiology

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Ascaris lumbricoides

A. larvae migrate to the pharynx, get swallowed, and return to intestines to mature. B. spreads to humans by ingestion of Ascaris eggs in food. C. is an intestinal roundworm. D. larvae penetrate into lymphatics and capillaries around intestines. E. All of the choices are correct.

Biology & Microbiology

Initiation, elongation, and termination are the three main steps in

A. translation only. B. transcription and translation. C. transcription only. D. photosynthesis.

Biology & Microbiology

Assume that a Chi-square test was conducted to test the goodness of fit to a 3:1 ratio and that a Chi-square value of 2.62 was obtained

Should the null hypothesis be accepted? How many degrees of freedom would be associated with this test of significance?

Biology & Microbiology

An adult who is suffering from hyperthyroidism:a

is always tired. b. is often hungry. c. is overweight. d. is mentally slow. e. shows a lack of emotions.

Biology & Microbiology