Ahelicopter can hover above the freeway

Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?