Which of the following is a micronutrient necessary for plants?
a. chlorine
b. nitrogen
c. phosphorus
d. potassium
A
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Which of the following accounts for vision loss in sufferers of glaucoma?
A. intraocular pressure buildup due to poor drainage of the aqueous humor B. loss of photoreceptors in and around the fovea C. protein accumulation in the lens D. detachment of the retina from the outer part of the eye E. poor control of extraocular muscles
Which statement is accurate regarding DNA technologies?
a. Humans have been successfully cloned. b. Germline gene therapy is used to treat genetic conditions in humans. c. Genetically engineered microorganisms constitute a large public concern. d. Possible problems associated with GMOs are a public concern. e. Bacterial cloning and animal cloning follow largely similar techniques.
The controls of the cell cycle are like
a. the brakes of a bicycle. b. the pedals of a bicycle. c. the handles bars of a bicycle. d. the seat of a bicycle. e. more than one of these.
A mutation is a change in
a. homeostasis. b. the developmental pattern in an organism. c. metabolism. d. DNA. e. the life cycle of an organism.