The loss of native vegetation to overgrazing, overharvesting, and overuse of groundwater to grow crops can lead to desertification
Indicate whether the statement is true or false
TRUE
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Which of the following is derived from the ground tissue system?
A) root hair B) cuticle C) periderm D) pith E) phloem
How do North American porcupines protect themselves from predators?
a. Their coloration serves as a disguise. b. They seek shelter in a tree. c. They have large jaws with teeth. d. They release a noxious spray. e. They release sharp modified hairs that stick in a predator’s mouth.
Which characteristic defines a virus?
a. Viruses cannot replicate. b. Viruses cannot metabolize. c. Viruses contain both RNA and DNA. d. Viruses have various morphologies. e. Viruses are very tiny cells with nuclei.
In horses, black coat color is influenced by the dominant allele (B), and chestnut coat color by the recessive allele (b). Trotting gait is due to a dominant gene (T), pacing gait to the recessive allele (t). Give the phenotype and genotype of the horse you would use in a testcross to determine the genotype of a black trotter.
A. Black pacer, BB tt B. Black trotter, BB TT C. Chestnut trotter, Bb Tt D. Chestnut pacer, bb tt E. Chestnut pacer, Bb tt