Example of controls & variables
for example, suppose you want to figure out the fastest route to walk home from school.
you will try several different routes and time how long it takes you to get home by each
one.
since you are only interested in finding a route that is fastest for you, you will do the
walking yourself.
what are the variables in your experiment?
independent variable-
dependent variable-
control variable-

Look at the punnett square for an x-linked recessive disease. is it possible for a female offspring to have the disease?

The endoplasmic reticulum (er) is an organelle in some cells. in these cells, it is continuous with the nuclear membrane and forms a large part of the cell\'s total membrane. sort the phrases below as describing rough er, smooth er, both, or neither. note: if you answer any part of this question incorrectly, a single red x will appear indicating that one or more of the phrases are sorted incorrectly.1) found in prokaryites and uekaryotys2) involved in protein synthesis3) involve in lipid synthesis4) contains molecular chaperones in lumen5) bound with ribosomes6) involved in toxin or drug metabolism7) large systemot internnected tubules,vesicles, and sacs8) "packages" enzymes in vesicles for secretion.

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.