*by my profile its actually not biology cause it didn'*t have science subject* Explain how crustal deformation builds land forms.

A. When two tectonic plates start to push into each other they can rise up and build mountains, or sink under and create deep valleys.

B. When wind and rain slowly wear away rock, they leave behind new looking land forms.

C. When sediments are laid down over vast areas the forces involved create rock over a very long period of time.

D. When two tectonic plates slide away from each other the inner liquid layer of the mantle comes to the surface as lava and creates new islands.

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

Aeukaryotic cell must be from a plant if the cell a) a nucleus b) a nuclear envelope c) cytoplasm d) a cell wall

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?