Alders are trees with symbiotic nitrogen fixing bacteria in their roots. This enables alders to be a key part of _________ in recently glaciated areas in Alaska.
A. intermediate disturbance
B. competition
C. primary succession
D. inhibition
E. secondary succession
C. primary succession
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The manner in which chromosomes align themselves along the metaphase plate is completely random. This quality
makes ____ possible.
a. metaphase I b. synapsis c. meiosis d. fertilization e. independent assortment
What is the difference between vitamins and minerals?
A. Vitamins cannot be made by our bodies, while minerals can. B. Vitamins are organic nutrients, while minerals are inorganic nutrients. C. Vitamins are inorganic nutrients, while minerals are organic nutrients. D. There are no main difference between vitamins and minerals.
In the accompanying figure, what is the function of the structure that is labeled as 7?
a. maintaining sperm below body temperature
b. storing of mature sperm
c. producing prostaglandins
d. producing nutritive fluid to support active sperm
e. producing alkaline fluid to protect sperm in the vagina
In most cases, the term auxin refers to ____.
A. abscisic acid B. indole-3-acetic acid C. jasmonic acid D. nitric oxide E. salicylic acid