All of the following are considered to be fossils except:
A. mineralized bone
B. an insect embedded in amber
C. a stone tool
D. a cast of an ancient animal
C. a stone tool
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Studies of the baboon are of special interest to students of human evolution because:
A. the common ancestor of humans and the apes was a baboon-like form B. baboons make tools and hunt for meat C. baboons occupy a habitat similar to that occupied by the early hominins D. none of these
Sickle-cell anemia is caused by the presence of _____ within the red blood cells.
A. hemoglobin S (HbS) B. hemoglobin A2 (HbA2) C. hemoglobin A (HbA) D. fetal hemoglobin (HbF)
Describe what science is and how it works. Discuss the steps of the scientific method. Explain how the scientific method proves something right/wrong.
What will be an ideal response?
Refer to the table below. If A = 6 and B = 8, which of the following is true?
A) The firm should buy more of Input 1 and less of Inputs 2 and 3.
B) The firm should buy more of Input 2 and less of Inputs 1 and 3.
C) The firm should buy more of Input 3 and less of Inputs 1 and 2.
D) The firm is minimizing costs.