Soil nitrogen is not solely contained within the rhizoids of the Dawsonia mosses because rhizoids _____
A) are associated with fungi that inhibit mineral transfer from soil to rhizoids
B) are not absorptive structures
C) lack direct attachment to the moss sporophytes
D) immediately transfer the nitrogen to the sporophyte
B
You might also like to view...
What is the process by which undigested food particles are expelled from a protist’s cell?
a. endocytosis b. phagocytosis c. exocytosis d. autocytosis
What is the genotype of the females that gave rise to these progeny?
Females heterozygous for the recessive second chromosome mutations px, sp, and cn are mated to a male homozygous for all three mutations. The offspring are as follows:
A) px+sp cn / px sp+cn+
B) px+sp cn+ / px sp+cn
C) px+sp+ cn+ / px spcn
D) pxsp cn+ / px+ sp+cn
E) insufficient data
Risk factors for atherosclerosis include factors that can raise the levels of blood cholesterol, such as
A) obesity, smoking, and a sedentary lifestyle. B) regular exercise and a high-fat diet. C) dieting and REM sleep. D) sedentary lifestyle, low-fat diet. E) maintaining homeostatic blood pressure.
Which of the following scientists provided evidence in favor of the concept of spontaneous generation?
A. Pasteur B. Needham C. Redi D. Buchner E. Spallanzani