Which of the following is found in the intestine of termites and produces enzymes needed to digest wood particles?
A. Trichomonas
B. Nyctotherus
C. Giardia
D. Trichonymphida
Answer: D
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What will be an ideal response?
Flowering can be regulated by light, temperature, gibberellin levels, or internal factors. What do all of these different flowering pathways have in common?
A. All four pathways result in a decrease in CONSTANS (CO) expression, which induces flowering. B. All four pathways result in an increase in CONSTANS (CO) expression, which induces flowering. C. All four pathways result in a decrease in LEAFY (LFY) expression, which induces flowering. D. All four pathways result in an increase in LEAFY (LFY) expression, which induces flowering.
You see a cell with several nuclei and you know that something is different about cell division. What is the most likely explanation?
A) failure of cytokinesis following mitosis B) failure of sister chromatids to separate C) nondisjunction D) failure of homologous chromosomes to separate
What would be the consequence if gastrulation did not occur?
A) Cleavage would not occur in the zygote. B) Embryonic germ layers would not form. C) Fertilization would be blocked. D) The blastula would not be formed. E) The blastopore would form above the gray crescent in the animal pole.