Modern humans (Homo sapiens) coexisted in Europe for thousands of years with which other hominin?

A) Homo neanderthalensis B) Homo erectus
C) Homo ergaster D) Homo heidelbergensis


Answer: A

Biology & Microbiology

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Four children of a man and woman who are second cousins have too few teeth, which is an autosomal recessive condition called oligodontia caused by mutation in a gene called LTPB3 on chromosome 11. The affected individuals are also short, with increased bone density in the spine and skull. The protein that causes the symptoms by affecting certain bone cells is too short. The mutation in this family is most likely

A) a missense mutation. B) a nonsense mutation. C) a duplication of the gene. D) a replacement of all purines with pyrimidines.

Biology & Microbiology

________ are the main cell type within connective tissue in all but one situation

a. Macrophages b. Cuboidal cells c. Fibroblasts d. Collagen fibers e. Squamous cells

Biology & Microbiology

An acid

A. has a value above 7 on the pH scale. B. is a chemical that takes hydrogen ions from a solution. C. has a value of 7 on the pH scale. D. is a chemical that adds hydrogen ions to a solution. E. All of the answer choices are correct.

Biology & Microbiology

Which of the following is not a likely outcome

of global warming? a. Extinction of species. b. Increased human death due to heat exposure. c. Changes in animal migration patterns. d. Increased waterborne illness. e. All of these are likely outcomes of global warming.

Biology & Microbiology