Plants can be grown experimentally without light. what key supplemental ingredient is needed for this to occur?

Sediment layers stop lateral spreading when: they encounter a barrier they encounter an opposing current they run out of additional sedimentary material

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?

Abrown coat is recessive in labradors, while a black coat is dominant. if two hybrids are bred, what percentage of the offspring will have black coats? a. 25% b. 50% c. 75% d. 100%