What were the genotypes of the sinistral snails?
A) ss female and Ss male
B) Ss female and Ss male
C) SS female and ss male
D) Ss female and ss male
E) ss female and SS male
B
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Which of the following is not a response to
rising body temperature? a. Increased rate of breathing. b. Decreased secretion of hormones that stimulate activity. c. More sweat. d. Blood flow to skin reduced. e. Increased rate of breathing.
Oaks, birches and corn produce both staminate and pistillate flowers on the same plant. What term describes this type of plant?
A. monoecious B. determinant C. dioecious D. hermaphroditic E. complete
The release of bacterial toxins into the blood leads to (bacteremia/septicemia/toxemia)
What will be an ideal response?
Two species of pines, Pinus radiata and Pinus muricota, live together in California and are capable of forming hybrids under laboratory conditions. However, they do not interbreed because one releases pollen in February and the other in April. What is the genetic isolating mechanism involved?
A) geographic B) temporal C) gametic D) ecological