The conducting tissue found in vascular plants that functions in transportation of materials throughout the plant, but does not lend structural support to the stem is

A. xylem.
B. phloem.
C. sporopollenin.
D. endosperm.
E. lycophyll.


B. phloem.

Biology & Microbiology

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Ian and Bryony are both carriers for two autosomal recessive disorders, PKU (chromosome 12) and cystic fibrosis (chromosome 7). They are expecting a daughter. What is the probability that she will have PKU but not CF?

A) 9/16 B) 3/16 C) 1/2 D) 1/16

Biology & Microbiology

A researcher in a lab finds a microscopic organism that has no nucleus, but has distinctive structural

molecules and mechanisms of photosynthesis. The organisms are abundant in virtually every habitat on Earth. The researcher has identified an organism belonging to the domain ____.

a. Bacteria b. “Protist” c. Eukarya d. Animalia e. Amoeba

Biology & Microbiology

In terms of their energy needed solar energy is converted to chemical energy primarily within the plans: stems leaves, roots,or flowers

What will be an ideal response?

Biology & Microbiology

Why is a cumulative distribution function a natural choice for the modeling of a limited dependent variable-particularly a dichotomous one?

A. Cumulative distribution functions are smooth. B. Cumulative distribution functions are nonlinear. C. Cumulative distribution functions have a range between 0 and 1. D. Cumulative distribution functions are easy to calculate.

Biology & Microbiology