What did the early experiments on photoperiodism demonstrate?

The answer is it signals transmitted downward. Early research on photoperiodism dealt with the flowering period of plants. They precise short-day (late summer and fall, less than about 16 hours), long-day (summer, lengthier than 9 to 16 hours), day-neutral (any length), and intermediate-day (not classifiable as either long-day or short-day) plants in qualified to their photoperiod.

1.the population change is near or at replacement level.

4. the birth and death rates are balanced.

6. sweden is most likely a developed country.

the correct option is a

explanation:

the movement mainly consisted of white farmers from the south who sought the relieve of farmers from their hardship. hope this !

by kd