Which tissue type is classified as a complex tissue?
a. Parenchyma
b. Collenchymas
c. Dermal
d. All are complex tissues
e. Sclerenchyma
c
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Which of the following best describes the sexual life cycle of bread mold?
A. (1) Multinucleate gametangi are produced and compatible strains undergo plasmogeny, and form (2) a heterokaryotic zygosporangium. (3) Karyogamy of the haploid nuclei takes place to form many diploid nuclei and the zygosporangium develops into a thick-walled zygospore. (4) Meiosis occurs and produces many haploid spores, that (5) are dispersed in air and germinate when finding a suitable environment. B. (1) Multinucleate gametangi are produced and compatible strains undergo karyogamy and plasmogamy, and form (2) a heterokaryotic zygosporangium. (3) Meiosis of the diploid nuclei takes place to form many haploid nuclei and the zygosporangium develops into a thick-walled zygospore. (4) Fusion of haploid nuclei occurs and produces spores, that (5) are dispersed in air and germinate when finding a suitable environment. C. (1) Uninucleate gametangi are produced and compatible strains undergo plasmogeny and form (2) a dikaryotic zygosporangium. (3) Karyogamy forms a diploid nucleus and the zygosporangium develops into a thick-walled zygospore. (4) Meiosis of diploic nuclei occurs and produces four haploid spores, that (5) are dispersed in air and germinate when finding a suitable environment. D. (1) Multinucleate zygosporangia develop thick walls and undergo plasmogamy with compatible strains (2) to form a heterokaryotic gametangium. (3) Karyogamy of the haploid nuclei takes place to form many diploid nuclei and they develop into thick-walled spores. (4) These undergo plasmogamy and produce diploid spores, that (5) are dispersed in air and germinate when finding a suitable environment. E. (1) Multinucleate gametangi with diploid nuclei are produced and compatible strains undergo meiosis (2) to produce a heterokaryotic zygosporangium with haploid nuclei. (3) Karyogamy of these nuclei takes place to form diploid nuclei that have a dark, thick wall. (4) These develop into spores, that (5) are dispersed in air and germinate when finding a suitable environment.
Which of the following is NOT part of the grazing food web?
a. detritivores b. primary producers c. primary consumers d. secondary consumers e. tertiary consumers
An industrial ecologist's goals would NOT include:
a. increasing resource use efficiency by altering manufacturing processes. b. designing products that are durable and can be de-manufactured. c. identifying points in the product lifecycle at which waste products can be used in other processes. d. identifying points in the product lifecycle at which waste products can be landfilled.
If alleles R and s are linked on one chromosome and r and S are linked on the homologous chromosome, what gametes will be produced? (Assume that no crossing-over occurs.)
a. RS, Rs, rS, rs b. RS, rs c. Rs, rS d. R, S, r, s