There are many more male conceptions than female conceptions because ______.
a. the intrauterine environment is more hostile to female conceptions
b. sperm containing the smaller Y chromosome are lighter so they can swim faster and reach the egg first
c. there are fewer sperm that contain an X chromosome than contain a Y chromosome
d. more eggs contain Y chromosomes than X chromosomes
Ans: B
You might also like to view...
How do pigeons find their way back to their starting point, at distances of around 100 miles?
a. through visual cues b. by perceiving electric fields c. using an odor map and also perhaps by sensing the Earth’s magnetic field d. through differences in temperature and sound pressure
What are some ways in which to build community in your classroom?
What will be an ideal response?
Which statement correctly defines extinction burst?
a. The gradual decline in frequency of a target behavior after the removal of the reinforcer. b. A gradual increase in frequency of a target behavior after the removal of the reinforcer. c. An immediate increase in the frequency of a target behavior after the removal of the reinforcer. d. An immediate decline in the frequency of a target behavior after the removal of the reinforcer.
How would you go about conducting formative assessment? What would you be looking for? What kind of behaviors would you engage in?
What will be an ideal response?