Why might a Punnett square predicting the results of a dihybrid cross give incorrect results?

a. The two genes are on the same chromosome, making some combinations less likely than others.
b. The two genes are on the same chromosome, making some combinations more likely than others.
c. The two genes are not on the same chromosome, making some combinations more likely than others.
d. The two genes are not on the same chromosome, making some combinations less likely than others.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

satellites are frequently used to make observations of the orbit on earth