A variety of pea plant called Blue Persian produces a tall plant with blue seeds. A second variety of pea plant called Spanish Dwarf produces a short plant with white seed. The two varieties are crossed, and the resulting seeds are collected. All of the seeds are white; and when planted, they produce all tall plants. These tall F1 plants are allowed to self-fertilize. The results for seed color and plant stature in the F2 generation are shown in the table. F2 Plant Phenotype NumberBlue seed, tall plant 97White seed, tall plant 270Blue seed, short plant 33White seed, short plant 100TOTAL 500Calculate the chi-square value for this experimental data. a. 3 degree of freedomb. phenotypes are 9/16 tall white 3/16 tall blue 3/16 short white 1/16 short blue

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.