In plants, the average expression of genes involved in cold tolerance is _________.
A. highest just before daytime hours
B. lowest just before nighttime hours
C. highest just before nighttime hours
D. constant during nighttime and daytime hours
E. the constant during nighttime hours
Answer: C
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Which of the following materials is produced by the vascular cambium? Select all correct choices
A. secondary xylem B. cork C. secondary phloem D. wood E. bark
If the progeny of a mating of pea plants have the following ratios 1342 smooth seed/green pod, 447 wrinkled seed/yellow pod, 429 smooth seed/ yellow pod, 1361 wrinkled seed/green pod what are the genotypes of the parents?
A. Parent 1: Homozygous for seed shape and pod colorParent 2: Heterozygous for seed shape and homozygous for pod color B. Both parents are heterozygous for seed shape and pod color C. Parent 1: Heterozygous for seed shape and pod colorParent 2: Homozygous seed shape and heterozygous for pod color D. Parent 1: Heterozygous for both seed shape and pod color Parent 2: Homozygous for both seed shape and pod color
To maintain their current weight, a person must balance their caloric intake with the ____
a. amount of energy stored in fat b. amount of vitamins and minerals in their diet c. amount of energy provided in their daily diet d. energy expended in their daily activities e. amount of saturated fats in their diet
Which of the following is an amphibian?
A. coelacanth B. turtle C. octopus D. toad E. lizard