One method plants use to obtain phosphorus when it is in limited supply is:
A. by roots adhering to soil particles
B. by roots growing deeper in the ground
C. by roots associating with certain fungi
D. by roots using passive uptake methods
E. by roots binding the phosphorus
C. by roots associating with certain fungi
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In wolves, gray coat color (G) is dominant to black (g) and brown eyes (B) are dominant to blue (b). The genes that control these traits are located on different chromosomes. The alpha male of the pack has the dominant phenotype for both traits and is heterozygous for both traits. The alpha female has brown eyes and a black coat; she is heterozygous for eye color. The alpha male and the alpha female mate. What proportion of their offspring will have the same phenotype as the mother?
A. 1/16 B. 3/16 C. 3/8 D. 1/2 E. None
When the water in a plant’s vacuoles is used, it causes
a. a waxy covering to develop. b. increased tissue growth. c. transpiration. d. wilting
Hormones are cleared from the body by endocrine glands
Indicate whether the statement is true or false.
Metabolism produces more than ____ waste products
a. 1000 b. 800 c. 200 d. 600 e. 10,000