What do we mean when we use the terms monohybrid cross and dihybrid cross?

the sphincter muscles at the end of the digestive tract is the anus.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: