Fusion of the nuclei of a dikaryotic cell in club fungi ____.
A. results in one diploid spores.
B. results in two haploid spores.
C. results in one diploid zygote.
D. produces the gills under the mushroom cap.
E. results in the mushroom fruiting body.
Answer: C
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The pH in the stroma of the chloroplast should be ________ compared to the thylakoids due to the _______
A. higher; higher concentration of hydrogen ions in the thylakoid B. lower; higher concentration of hydrogen ions in the thylakoid C. higher; lower concentration of hydrogen ions in the thylakoid D. lower; lower concentration of hydrogen ions in the thylakoid
Which of the following agents lacks a cell wall and is the smallest known free-living form?
a. Chlamydia b. Mycoplasma c. Rickettsia d. Coxiella
Which of these is a defining characteristic of animals that distinguishes them from other eukaryotes?
A) Animals are multicellular. B) Animals ingest food. C) Animals are heterotrophs. D) Animals use photosynthesis.
Seedless vascular plants require
a. wind to distribute their pollen b. water to reproduce sexually c. soil to reproduce sexually d. birds to distribute their pollen e. insects to distribute their pollen