Which change occurs in a fetus during the first trimester? A. Rapid weight gain occurs.
B. Fingers and toes become well defined.
C. Eyes and ears become fully developed.
D. Central nervous system completes development.

Using the periodic table, determine which material is most likely a good conductor

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?