List three abnormalities involving numbers of X chromosomes
What will be an ideal response?
Klinefelter syndrome, Turner syndrome, XXXX syndrome
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Chloroplasts utilize light energy to make ____
a. carbohydrates b. fats c. proteins d. nucleic acids e. steroids
Dictyostelium discoideum is an unusual organism, one that straddles the boundary between the unicellular and the multicellular. Its feeding phase consists of individual amoeba-like cells that move independently, feeding on bacteria by phagocytosis. When the food runs out, cells begin to aggregate into a multicelled structure that migrates toward light. The cells differentiate into a base, stalk, and spores; only the spores survive to colonize a new habitat. Dictyostelium discoideum is which of the following?
a. An autotroph b. A heterotroph and autotroph c. A heterotroph d. A detritovore e. A heterotroph and detritovore
Dissolved sugars are transported in:
a. cork cambium. b. epidermis. c. pith. d. phloem. e. xylem.
Early death associated with obesity has recently been termed
A. sudden infant death syndrome (SIDS). B. sedentary death syndrome (SDS). C. wasting disease. D. nutritional deficiency disease (NDS).