What carbohydrate is shared by both crabs and fungi?
a. Hyphae
b. Cellulose
c. Chitin
d. Glycogen
c
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Almost all cases of cystic fibrosis, a(n) ____ genetic disorder, are the result of mating between two unaffected parents
a. mitochondrial b. autosomal dominant c. autosomal recessive d. X-linked dominant e. X-linked recessive
All of the following statements about the sinuses are TRUE EXCEPT which one?
A) The sinuses are located in several of the facial bones. B) The sinuses are lined by a tissue that produces and secretes mucus. C) The sinuses give the human voice its characteristic resonance and tone. D) The sinuses add weight and bulk to the skull and facial bones, strengthening them. E) The sinuses connect to the nasal cavity by small passageways.
What is the simplest method to measure population density in a given area?
A. Count the number of organisms. B. Perform a line transect. C. Look for random dispersion patterns. D. Count the number of reproductive adults. E. Calculate a survivorship curve.
Which process is absolutely necessary for sexual reproduction to occur in a life cycle, but is not necessarily required for organisms that only reproduce asexually?
a. prokaryotic fission b. mitosis c. meiosis d. cytokinesis e. karyokinesis