Photosynthetic, nonmotile organisms having cell walls belong to the Kingdom
A. Plantae.
B. Fungi.
C. Protista.
D. Animalia.
A. Plantae.
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E. coli uses which of the following enzymes to regulate membrane fluidity?
A) glucose-6-phosphatase B) desaturase C) fatty acid convertase D) gangliosidase E) kinase
Describe alternation of generations. Include in your discussion the following terms: gametophyte,
sporophyte, diploid, haploid, dominant form, meiosis, and fertilization. What will be an ideal response?
After removing some freshly baked cookies from the oven, you accidentally brush the side of the pan with your bare hand. Your reflexes kick in and you immediately draw your hand away. What is the proximate cause of this behavior?
A. Drawing your hand away quickly when it encounters high heat prevents injury, thereby increasing your chances to survive and reproduce. B. For millions of years, your ancestors survived in part because they avoided damaging heat, and thus were able to pass on heat-avoiding genes to you. C. You perceived the heat, judged that it would cause a burn if you left your hand in place too long, and made a conscious decision to pull your hand away. D. Sensory receptors in the skin of your hand sent a signal to interneurons in your spinal cord, which subsequently signaled the motor neurons in your arm and hand to contract, drawing your hand away.
The evolutionary explosion of new species from a common ancestor is
A. adaptive radiation. B. convergent evolution. C. divergent evolution. D. gradualism.