Please help . (Pretend*) the human ability to roll your tongue is dominant to not being able to roll your tongue (*it’s not really
that simple.). Draw a pedigree to show the inheritance of this trait, given the following family history:
Grandpa Snow is a tongue roller but Grandma Snow is not. They have four children, 2 sons and 2 daughters, who
are all rollers. Their last daughter, Judy, married John Flake. John’s parents are both rollers, but John’s two sisters
are non-rollers. John is a roller. John and Judy Snow-Flake have three children named Crystal Snow-Flake (nonroller), Delicate Snow-Flake (roller) and Jake Snow-Flake (roller).
Give the possible genotypes of each individual. Pedigree:
Grandpa Snow:
Grandma Snow:
Judy Snow-Flake:
John Flake:
Crystal Snow-Flake:
Delicate Snow-Flake:
Jake Snow-Flake:

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

genetic variation will increase because of a new habitat and food source.

explanation: