Which of the following statements about sheep is true?
A. Wild sheep have a larger range of habitat than domesticated sheep.
B. Woolly sheep are the product of natural selection.
C. Wild sheep produce more wool than domesticated sheep.
D. The domestic sheep's wool offers it protection against extreme heat.
E. Wool from wild sheep is better for making clothing.
Answer: D
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Indicate whether the statement is true or false
Scientists use _______ to produce many copies of small DNA fragments, such as those obtained at crime scenes or from fossils
a. transcription b. polymerase chain reactions c. nondisjunction d. trisomies e. random assortment of alleles
A fertilized egg that receives the same allele from each parent for a particular trait is referred to as being
A. homozygous B. heterozygous C. identical D. chromosomal
There are no societies left in which political organization consists of flexible and informal kinship systems
a. True b. False Indicate whether the statement is true or false