Anthrax is a highly infectious disease of animals that can be transmitted to humans who come in direct contact with infected animals or their products.
Answer the following statement true (T) or false (F)
True
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A gene mutation
a. is a change in the nucleotide sequence of DNA. b. may be caused by environmental agents. c. may arise spontaneously. d. can occur in any organism. e. is described by all of these
A mutation occurring in which cell type can be passed from parent to offspring?
a. gamete b. somatic cell c. diploid cell d. stem cell e. red blood cell
Three fossils are found in undisturbed layers of rock, or strata. Fossil A is closest to the Earth's surface and Fossil C was deeper than Fossil B. Given this limited data, what assumptions can you make about these fossils?
What will be an ideal response?
Von Baer proposed that diagnostic traits for distinguishing species among vertebrates appear at the:
a. earliest stages of development. b. latest stages of development. c. earliest and latest stages of development. d. middle stages of development.