What is the name of the lignified, tubelike structures that branch throughout the body of some plants, conducting water and solutes?
a. root systems
b. rhizomes
c. shoot systems
d. vascular tissue
Ans: d. vascular tissue
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The protostomes are animals whose
a. stomach is in front of the crop. b. mouth is covered by a fleshy lip. c. blastopore becomes a mouth. d. digestive tract is lined by mesoderm.
Choose any and all of the following that would describe a gamete that is missing one chromosome
a. The chromosome number would be expressed as 2n ? 1. b. One chromosome would occur without its homologue. c. The condition would be called monosomy. d. The chromosome number would be expressed as 2n ? 1 and the condition would be called monosomy. e. The chromosome number would be expressed as 2n ? 1, the condition would be called monosomy, and one chromosome would occur without its homologue
Which characteristic of a population is a convenient way to express the rate of change within a
population? a. size b. growth c. density d. carrying capacity e. age
According to your text, how many classes of IFs exist?
The proteins of intermediate filaments (IFs) are tissue-specific. Unlike microtubules or microfilaments, the amino acid composition of intermediate filaments varies from tissue to tissue. IFs are classified by the cell type or tissue in which they are found.